[HN Gopher] U.S. to require negative Covid-19 tests for internat...
       ___________________________________________________________________
        
       U.S. to require negative Covid-19 tests for international air
       passengers
        
       Author : Element_
       Score  : 266 points
       Date   : 2021-01-12 19:20 UTC (3 hours ago)
        
 (HTM) web link (www.reuters.com)
 (TXT) w3m dump (www.reuters.com)
        
       | eloff wrote:
       | The US is basically the center of this pandemic now. This is a
       | joke. It's too little too late.
       | 
       | What they should do is test people leaving the US for other
       | countries - spare the rest of the world.
        
         | turing_complete wrote:
         | Well, don't discard Europe too early. We just surpassed you in
         | total deaths!
        
       | liquidify wrote:
       | This seems like a scheme that will be ripe for gaming / outright
       | fraud. How exactly does the U.S. verify anything? Basically the
       | only way to do this would be to have control over some kind of
       | verification system that comes from vetted and registered
       | hospitals.
       | 
       | Even then you have so many problems. There is no realistic way to
       | even partially guarantee that forgeries won't happen regardless
       | of your vetting system. And add to that the fact that the U.S.
       | government has no control over regulations in foreign countries,
       | so there is no way to force validators into compliance.
       | 
       | This sounds half baked to me.
        
         | [deleted]
        
         | temporalparts wrote:
         | A half-baked plan that will screen out only some COVID carriers
         | is better than the status quo where we screen out none of the
         | COVID carriers.
         | 
         | In Hawaii, they have limited partnerships and Hawaii verifies
         | the result directly with the labs. It says on the website
         | they'll prosecute anybody that submits forgeries, but it's true
         | that this is much easier to do when everything is within the
         | same country.
        
         | mandelbrotwurst wrote:
         | It doesn't need any of that to be nearly entirely effective.
         | The vast majority of people traveling into the country are not
         | going to attempt to falsify documents.
        
         | a13n wrote:
         | I mean the number of people who are willing to commit forgery
         | and lie to border patrol is probably pretty small. This is a
         | huge step in the right direction that will prevent loads of air
         | transmission. We don't really have time to wait years for a
         | "fully baked" solution, and this is a solid compromise.
        
         | jackson1442 wrote:
         | When I got the PCR COVID test administered when I had a
         | suspected case, I was required to fill out a form stating my
         | name, DOB, email, phone, physical address, full social security
         | number, and student ID (I'm a college student). Since these are
         | all attributes bound to identity, I'm sure it's not too
         | difficult to make a database of test results.
        
           | liquidify wrote:
           | ...Just from the thought of it, forcing other countries to
           | store your private info would be a terrible idea considering
           | they probably could care less about it being stolen.
           | 
           | But, you are entirely missing the point. The U.S. cannot
           | mandate that other countries maintain a database with U.S.
           | citizens personal info, even if your idea didn't have massive
           | gaping holes in it regarding security. It is simply
           | impossible.
        
         | Mediterraneo10 wrote:
         | Forgeries of the international yellow fever vaccine certificate
         | happen regularly. (For example, backpackers to Africa from
         | Eastern European countries where the yellow fever vaccine was
         | perennially unavailable at our local clinics printed out their
         | own copy on yellow paper and put a fake stamp on it.)
         | Nevertheless, the yellow-fever certificate requirement is
         | believed to work well enough regardless. With COVID, too, one
         | could argue that something is better than nothing.
        
         | snakeboy wrote:
         | My experience flying from the US to France through Portugal was
         | that an agent at the gate looks over whatever paper you give
         | them and highlights "PCR", "NEGATIVE" and the date and then
         | hands it back. Then in Portugal they asked for the paper and
         | waved me through, and the same at the French border.
         | 
         | So logistically, pretty easy to fake (unless you're stupid
         | enough to be trying to buy the fakes _in the airport_ like some
         | guys who got caught in Paris a few months ago) but I agree with
         | other commenters it 's better than nothing and will almost
         | surely improve the rates of testing/precaution around travel.
        
       | breck wrote:
       | This is moronic. We have between 30M and 130M cases here. There
       | is no mathematically possible way in hell that international
       | passengers could bring COVID here in any noticeable way at this
       | point.
       | 
       | Why would they do this? I'll tell you the one and only one
       | reason: some people are making tons of money off it. I just flew
       | back to Hawaii from California and had to pay $170 for a COVID
       | test, even though I'm already immune.
        
         | bitcurious wrote:
         | I think it's more about protecting the passengers who are in an
         | enclosed space together for 6+ hours than preventing spread
         | within the US. I find it a big reassurance.
        
         | selimthegrim wrote:
         | We don't want to import any more new more infectious strains if
         | we can help it
        
           | 6nf wrote:
           | Unless the new more infectious strain also has a much lower
           | mortality rate?
        
       | opwieurposiu wrote:
       | An issue with PCR tests is that most of them use a cycle
       | threshold of 40, which produces way to many false positives.
       | 
       | https://www.nytimes.com/2020/08/29/health/coronavirus-testin...
        
         | ceejayoz wrote:
         | "False positive" isn't really an accurate term there.
         | 
         | If there's _no_ virus, you 're not going to be able to amplify
         | it. A too-high threshold may detect non-contagious levels of
         | virus (still a concern, if you're in the early pre-symptomatic
         | days of an infection) or non-infectious virus particles left
         | over post-infection.
        
           | t-writescode wrote:
           | Doesn't this presuppose that the only thing the test can
           | detect is the virus itself and not things that highly, but
           | not perfectly, correlate to it?
        
             | ceejayoz wrote:
             | Not really, no. They specifically pick genomic sequences
             | believed to be unique to SARS-CoV-2; they're specific
             | enough to distinguish between SARS-CoV-2 and the other
             | known coronaviruses, let alone _less_ related viruses.
        
               | secretupstar2 wrote:
               | https://deit.groovepages.com/stopdiet/index
        
         | chadash wrote:
         | Just to clarify, the linked article isn't really talking about
         | false positives. It's talking about people who _are_ carrying
         | the virus, but _perhaps_ aren 't contagious due to it being
         | only small amounts.
        
         | thelean12 wrote:
         | Well at least false positives are much better than false
         | negatives.
        
         | gojomo wrote:
         | This article doesn't mention PCR tests, so perhaps we're being
         | smart enough to accept the often-more-relevant-for-infection-
         | control antigen tests for this purpose. (I'd not yet bet on it,
         | given how bureaucracies have made almost every wrong choice so
         | far, but: maybe?)
         | 
         | But also: if PCR false-positives are a concern, the cycle
         | standard can be reduced, or the reporting expanded to include
         | the cycle on which a test turned positive, so that "positive"
         | tests that are likely dubious/marginal/past-infection can
         | distinguished from "blazing active infection".
        
           | learnstats2 wrote:
           | The rapid antigen tests have a significant problem with
           | false-negatives: the BMJ reported that Innova tests have 49%
           | sensitivity.
           | 
           | That makes it pointless to use as a border control - for
           | every two cases, at least one gets through. (Or, potentially
           | much worse, under this system: I throw away my positive tests
           | and show whatever false negative one I have).
           | 
           | You ideally _want_ to be conservative and permit some false
           | positives at an effective border control, because you don 't
           | want to risk infectious cases getting through and causing an
           | untraceable national breakout.
        
             | gojomo wrote:
             | Even tiny sensitivity would be better than nothing - or
             | something that's so slow & expensive it's impractical.
             | 
             | But other antigen tests purport to have 90%+ sensitivity.
             | 
             | And the kinds of "PCR positives" they miss are often cases
             | that are no longer infectious, anyway: lingering viral
             | fragments, rather than live full-virus shedding.
             | 
             | So: ideal for border-control & creating other internal
             | gradients that help suppress the worst active cases. The
             | perfect should not be the enemy of the very good.
        
         | matz1 wrote:
         | How easy is it to find out the cycle threshold the provider
         | use?
        
       | nomercy400 wrote:
       | Good idea. However, don't be surprised if other countries will
       | also require negative tests for incoming US air passengers.
        
         | vinay427 wrote:
         | Most of the countries that have sane case rates and many that
         | are doing terribly with respect to case rate already require
         | this. Some such as the Netherlands added it relatively recently
         | for transit passengers as well, although most only require it
         | for arrival passengers.
        
         | raldi wrote:
         | I should hope so.
        
         | swampthing wrote:
         | That seems like a good thing for incoming US air passengers. It
         | lowers the risk of infection from the flight.
        
       | vincentmarle wrote:
       | > U.S. officials do not plan to drop restrictions that were
       | adopted starting in March that ban most non-U.S. citizens who
       | have been in most of Europe, the United Kingdom and Brazil as
       | soon as possible, the sources said.
       | 
       | Does anyone know if the EU travel ban is going to get lifted
       | anytime this year (with the Biden administration)?
        
         | ls612 wrote:
         | I'd sure hope it would be this year. Keep in mind we should
         | have the ability to vaccinate every American adult by the late
         | spring so the pandemic should be reduced to very low levels.
        
       | nilkn wrote:
       | I have an interesting anecdote related to this.
       | 
       | As it happens, I currently have COVID. When I first noticed I was
       | getting sick, I was scheduled to fly in the near future, so I got
       | a rapid COVID test that delivers results in 15 minutes.
       | 
       | It was negative. I got another one, and it was negative too. I
       | had thus intended to go ahead with the trip under the assumption
       | I had a minor cold.
       | 
       | Later, a few days before I was to fly, I lost all smell and
       | taste. Now I didn't know what to think. I wasn't particularly
       | congested, and the loss of smell was total. I'd never experienced
       | this before. Could both tests have been false negatives?
       | 
       | I delayed the flight (free of charge luckily, so no big deal) and
       | got a test that had to be sent to a lab for analysis. A week
       | later, the positive test result came back.
       | 
       | Take from this what you will. I'm not a scientist or a doctor and
       | frankly there's nothing remotely intelligent I can say about the
       | various tests out there for COVID. But if the rapid tests are as
       | unreliable in general as they were for me, it's sort of no wonder
       | COVID is spreading like wildfire. I was very, very close to
       | boarding a plane with an active case of COVID, and I would have
       | if I hadn't acted out of an abundance of caution.
        
         | option wrote:
         | note that rapid test is still useful to _confirm_ infection.
         | But, yes, much more unstable for ruling out one
        
         | DeRock wrote:
         | Whether a test is positive or not depends highly on what type
         | of test it is, and when you are tested relative to symptom
         | onset. You can absolutely be carrying the COVID virus but still
         | test negative. Heres a paper with a handy chart:
         | https://jamanetwork.com/journals/jama/fullarticle/2765837
         | 
         | I think you testing negative was a combination of the rapid
         | test being unreliable, as well as getting tested early with
         | respect to symptoms.
        
         | situationista wrote:
         | Most countries which require a test for entry stipulate it must
         | be a PCR test rather than a rapid (antigen) test. I'm currently
         | in Lisbon waiting for the results of a 24h PCR test in order to
         | board a flight to Azores, for example.
        
         | Osmium wrote:
         | I'm glad the OP made the correct decision in this case and hope
         | they get well soon.
         | 
         | > the assumption I had a minor cold > the loss of smell was
         | total
         | 
         | Since there does seem to be a messaging problem about the
         | reliability of testing, I think it's worth emphasizing: if
         | someone has symptoms of COVID, they should proceed as-if they
         | have COVID. CDC guidance[1] is to isolate if you have a
         | positive test OR if you have symptoms.
         | 
         | To do otherwise is to gamble with the health and lives of the
         | people they meet, and the people those people meet, and so on.
         | It may prove almost impossible to show who caught COVID from
         | whom, but that doesn't mean that ignoring guidance won't lead
         | to deaths. A statistical death is still the death of a real
         | person, even if we can't put a name to them.
         | 
         | [1] https://www.cdc.gov/coronavirus/2019-ncov/if-you-are-
         | sick/is...
        
           | nilkn wrote:
           | To be clear, the order of events was such that I did not have
           | loss of smell/taste at the time of the rapid tests. There was
           | no indication at that time of anything that wasn't completely
           | consistent with and expected from a cold, and I even
           | encountered resistance when I tried to get tested prior to
           | the tell-tale loss-of-smell symptom appearing (hence the
           | rapid tests only at that point). I had a mildly uncomfortable
           | phone call with an urgent care center where they discouraged
           | me from pursuing testing because they didn't think I had
           | enough symptoms.
           | 
           | I knew exactly from whom I had contracted whatever illness I
           | had, and that person had also tested negative for COVID (upon
           | further questioning, their test had also been a rapid one,
           | and they too had not been informed of its unreliability for
           | any negative determination).
        
         | dragonwriter wrote:
         | Rapid tests are known to be unreliable and particularly have a
         | high false negative rate. That's why all the guidance has been
         | that rapid tests can be used to indicate infection but not rule
         | one out, and none of the screening processes based on exposure
         | and symptoms accept "but I also had a negative rapid test" as
         | neutralizing a flag on any screening factor.
         | 
         | > I would have if I hadn't acted out of an abundance of
         | caution.
         | 
         | The bare minimum of caution with a rapid test is treating a
         | positive as a true positive and a negative as an indicator that
         | you need a regular test. That you understood your actions to be
         | an abundance of caution demonstrates a failure to effectively
         | communicate on some level (I'm not saying that you are
         | culpable; the information is out there's but delivery
         | is...mixed, even before considering how it is muddled by
         | misinformation from various sources.)
        
           | nilkn wrote:
           | I definitely think there's a communication deficiency or
           | breakdown happening, because none of the medical
           | professionals indicated to me that the rapid tests were
           | _that_ unreliable when it comes to producing false negatives.
           | I also feel personally guilty for not having been as well-
           | informed as I should have been. I 'm just glad I experienced
           | a tell-tale symptom (loss of smell/taste) and was able to act
           | on it before boarding a plane.
           | 
           | Another interesting aspect of this is that prior to
           | experiencing loss of smell/taste, I was more or less told by
           | urgent care staff that I didn't have COVID, and they were
           | pretty resistant to testing me -- hence I only got rapid
           | tests. Yet I actually was right in the midst of an active
           | case.
        
             | thaumasiotes wrote:
             | > because none of the medical professionals indicated to me
             | that the rapid tests were _that_ unreliable when it comes
             | to producing false negatives.
             | 
             | You're being very emphatic about this, but all you've
             | described is that the rapid test failed in a single case
             | (you). We expect a lot more failure than that from the slow
             | test! Where is the idea coming from that you experienced
             | egregious unreliability?
        
               | michaelt wrote:
               | Well, he did take _two_ rapid tests, which both produced
               | false negatives.
               | 
               | What this tells us about false negatives depends on
               | details he didn't mention, about how correlated the two
               | tests were. Obviously, it was the same person each time -
               | but was it the same day? Same test brand? Same clinic?
               | Same tester?
        
             | cbo100 wrote:
             | You mentioned it was a few days between the initial
             | negative rapid tests and the positive lab test.
             | 
             | Would be interesting to know the result of another rapid
             | test at the same time as the lab one.
             | 
             | Are they just flat out missing some infections, or do they
             | require a much higher viral load to indicate positive?
        
               | weaksauce wrote:
               | > Are they just flat out missing some infections, or do
               | they require a much higher viral load to indicate
               | positive?
               | 
               | they do require a higher viral load than the pcr test to
               | accurately show infection. the pcr test studies have
               | shown to be 0-30% false negative later in the illness
               | after symptoms have shown (when there are fewer antigens
               | in the body). both the pcr and the rapid tests are
               | expected to have a near 0% false positive rate though
               | with most false positives being lab contamination or
               | mishandling. even if the test is 50% false negative(not
               | the actual number) it would still drastically slow the
               | spread of the virus coupled with other measures. This is
               | more of a defense in depth instead of a firewall; the
               | swiss cheese layers of threat reduction.
        
             | coding123 wrote:
             | I can't count the number of communication breakdowns any
             | more with Covid. Apparently to get any number of people on
             | the same page about something is not possible. Even with
             | the internet. Blame it on information overload, or perhaps
             | apathy.
             | 
             | I hope when Biden takes office he does daily Covid
             | briefings where they disseminate accurate knowledge which
             | would include correcting previous things we thought we
             | knew. I know democrats that actually watched the Trump
             | briefings because there were actually intelligent people
             | behind half the info. I think many people tuned out the
             | moment he recommended injecting bleach - but there was
             | still value in the briefings. It was something that I know
             | a LOT of people actually paid attention to.
        
             | whimsicalism wrote:
             | Rapid tests are just a gamble if you want to save
             | time/money/exposing others if you end up being positive.
             | 
             | If you're negative, you then have to get the actual test,
             | but if you're positive you can probably start isolating
             | now.
        
               | nip180 wrote:
               | > if you're positive you can probably start isolating
               | now.
               | 
               | If you experience symptoms you should start isolating,
               | regardless of the results of a rapid test.
        
         | pvarangot wrote:
         | Thanks for your anecdote. When SF was doing better and the
         | possibility of big outdoor events with testing on the door were
         | something that was being discussed, I looked at rapid tests
         | together with some friends and the accuracy is really
         | appalling. People relying on this to "safety socialize" may be
         | one of the issues making cases rise in California, the math
         | adds up. Many people reached to the government saying they
         | should stop sponsoring and advertising rapid test sites because
         | the false sense of security may be really doing more harm than
         | good.
         | 
         | One of the rapid tests that we considered has, as advertised by
         | its own manufacturer, a 10% false positive rate on basically
         | all the population, and a 50% false negative rate even on
         | symptomatic individuals with high viral load. Do the math, but
         | using that type of test in something like for example a 100
         | person event or a restaurant will result in people being turned
         | out of the door daily even if they were not symptomatic, and at
         | least one or two people with high viral load being admitted
         | into your place. I can't find the link of the test now, but
         | there's better data about how harmful rapid tests are when not
         | used together with PCR testing, for example here:
         | https://www.bmj.com/content/371/bmj.m4941 and here:
         | https://asm.org/Articles/2020/November/SARS-CoV-2-Testing-Se...
         | 
         | That's why most countries that really thought this through
         | require a recent PCR test result for admittance.
         | 
         | It's really not clear what benefits rapid tests have if you
         | don't have a model for population behavior. I think at lest the
         | SF government is only doing them to save face now that the cat
         | is out of the bag.
        
         | koyote wrote:
         | > A week later, the positive test result came back
         | 
         | Which country do you live in that it takes a week for the PCR
         | test to come back? It's around 24 hours here and I thought that
         | was the case in all developed countries.
         | 
         | I hope you recover quickly!
        
         | jonny_eh wrote:
         | I hope you get well soon!
        
         | jedberg wrote:
         | This rapid tests have a very high false negative rate. The
         | result you get back should really be "You have COVID" or "You
         | may have COVID, get a PCR test".
        
         | graeme wrote:
         | Rapid tests are at their most accurate when someone is at their
         | peak infectiousness. Accuracy declines swiftly before or after
         | that.
         | 
         | So the use you made of them didn't fit their ideal use case, as
         | you used them several days before travel.
         | 
         | Even then, with symptoms, I am not sure they would be enough to
         | rule out a positive. The biggest use of rapid tests is finding
         | additional positives that would not otherwise have been found.
        
       | wendyshu wrote:
       | Why wasn't this done months ago? Seriously, is there any good
       | reason?
        
       | mamon wrote:
       | There's one thing I do not understand: they are introducing
       | testing requirement, but still keep travel ban for all EU
       | citizens in place. Why?
        
       | FreakyT wrote:
       | I'm glad it's happening (better late than never), but they really
       | should have started doing this a year ago.
        
         | surge wrote:
         | Tests weren't widely available a year ago. 3-6 months ago
         | maybe.
         | 
         | In fact a year ago, exactly, the existence of COVID was still
         | being denied or downplayed by the Chinese government. Very few
         | people in the US even knew about it, and only if very plugged
         | in to Chinese social media or non government sources.
        
           | dekhn wrote:
           | I'm pretty sure it was being widely covered (and acknowledged
           | by the chinese) in late January during Chinese New Year.
           | https://www.nytimes.com/2020/01/29/world/asia/coronavirus-
           | ch... At the time the US evacuated ~200 people from Wuhan,
           | flew them to LAX (well, landed at a nearby air force base),
           | made them stay in isolation, then monitored them as they
           | returned home for 2 weeks.
        
           | pishpash wrote:
           | Wrong. It was all over Reddit but people laughed over it.
        
           | josephg wrote:
           | The USA was doing 500k tests/day back in May, and over 1m
           | tests/day by July. Probably couldn't have happened earlier
           | than that, but it would definitely have been feasible mid
           | last year.
           | 
           | Source: https://ourworldindata.org/grapher/full-list-
           | covid-19-tests-...
        
             | makomk wrote:
             | In order for a policy like this to be workable, you need
             | tests to be widely available in the countries people are
             | travelling from because the whole point is to test people
             | before departure - and they simply weren't in most non-US
             | countries.
        
         | azurezyq wrote:
         | and the current situation is that US has more cases than
         | anywhere else in the world.
        
           | vinay427 wrote:
           | Per capita it's really most of western Europe and the US that
           | are struggling, and the US is doing better on vaccinations so
           | far while it has had a higher case and death rate than most
           | but not all of Europe. It's rather misleading to just cite a
           | total confirmed case count.
           | 
           | https://boogheta.github.io/coronavirus-countries/
        
             | bluGill wrote:
             | There are only a handful of countries not western Europe or
             | the US where I would trust their numbers. Of the list
             | Vietnam is the only surprise.
             | 
             | Trust means their official numbers within a reasonable
             | margin of error of correct. Nobody have perfectly accurate
             | numbers, but the ones are trust are generally not
             | miscounting by enough to worry about.
        
       | vermontdevil wrote:
       | Cue black market negative tests for sale.
        
       | rhacker wrote:
       | I love how in the photo there's two people with their nose
       | outside the mask. It's clear as day why infections are up
       | everywhere.
        
         | ralph84 wrote:
         | All of the research on masks published before it became a
         | political issue said as much. The general public doesn't wear
         | masks properly enough for masks to have an infection control
         | effect.
        
           | BugsJustFindMe wrote:
           | That's fixable without telling people to not bother wearing
           | masks.
        
       | [deleted]
        
       | hikerclimber wrote:
       | probably means that the flights from uk contain a more deadly
       | version of covid. but i am no expert.
        
       | esoterica wrote:
       | The infection rate in the US is so high that the average arriving
       | international traveller has a lower chance of being infected than
       | the average US resident. What exactly is the point of this?
       | Constitutionality aside, you would literally make a bigger impact
       | on mitigating the virus spread by testing random people on the
       | street. Like DUI checkpoints or stop-and-frisk but for covid.
        
       | disabled wrote:
       | This is no surprise, although according to CDC research, this
       | only reduces the infection rate among these passengers by 5-9%.
       | 
       | A lot of EU countries require their own citizens of their
       | countries to get a COVID-19 PCR test prior to entry. A lot of
       | times, this has to be paid out of pocket abroad.
        
         | mortehu wrote:
         | What research is this? As far as I've been able to tell, CDC
         | hasn't conducted a single randomized survey on any large group,
         | but has only collected convenience samples.
         | 
         | Also keep in mind that due to compounding (keeping these people
         | from infecting others on the plane and at home), the effect
         | extends beyond the people prevented from traveling. You can
         | also speculate that detectable infections are more
         | transmissible during the journey.
        
         | carstenhag wrote:
         | Anecdote from a German that visited Spain to see the family:
         | Spains government requires <72h old negative covid test before
         | entering the country, with 6000EUR in fines if no test can be
         | presented. Also, a form about symptoms etc had to be filled
         | out.
         | 
         | After arriving at Valencia, Spain, there was a big line where
         | we had to show the form's result QR code only. Not a single
         | passenger was asked for the covid test.
        
         | calebm wrote:
         | I've heard that the vaccine doesn't make you less likely to
         | transmit COVID - just less acute symptoms. So getting the
         | vaccine doesn't really help other people - just you. From this
         | perspective, this doesn't make much sense (unless the objective
         | is to make $ for the corporations).
        
           | bluGill wrote:
           | You heard wrong. Nobody actually knows if you can transmit
           | after getting vaccinated or not. Thus far anyone who claims
           | otherwise is a liar.
           | 
           | There is some evidence that some of the vaccines prevent
           | transmissions, but we need more study before we can make a
           | statistical determination.
           | 
           | We know why other vaccines have failed to stop transmission.
           | The reasons those vaccines didn't stop transmission do not
           | apply to the covid ones. However there is a lot we don't know
           | about biology so until we have better evidence no expert will
           | state that the vaccine stops transmission even though many
           | believe it will.
        
         | ruste wrote:
         | Is that 5-9% of total passengers or 5-9% of those that have
         | covid at the time?
        
       | wzy wrote:
       | This will now place a strain on the testing facilities of small
       | countries (islands) that are a popular destination of American
       | tourists.
       | 
       | In Jamaica, every lab that has been approved to conduct the PCR
       | test has been overwhelmed by a flood a Canadian tourists who now
       | need a negative PCR test result to return home. Mind you, smaller
       | countries have been having an uphill battle with procuring the
       | reagents needed for the PCR tests because countries like the US
       | is grabbing up everything COVID related, and not using them.
       | 
       | Had the US implemented these measures 9 months ago, the entire
       | world would have looking at the tail-end of this pandemic,
       | instead of waiting for the US to catchup with what every other
       | country considers as a best practice.
        
         | raldi wrote:
         | That's not a bug; it's a feature.
        
         | vinay427 wrote:
         | Every other country? Have you looked at the recent COVID-19
         | case and death rates in much of western Europe? Many of those
         | countries, one of which I live in (which still doesn't require
         | testing arrival passengers), are still changing their policies
         | on incoming travelers with respect to quarantining and testing.
         | There isn't some global consensus that the US is blind to.
        
           | wzy wrote:
           | I am glad you picked up on the substantive point of my
           | argument.
        
             | vinay427 wrote:
             | It's this part that I'm responding to, which appears to be
             | one of the main points that you made:
             | 
             | > Had the US implemented these measures 9 months ago, the
             | entire world would have looking at the tail-end of this
             | pandemic
             | 
             | I don't see how that's true given the situation in western
             | Europe as well as several other countries and obviously the
             | US.
        
         | danielfoster wrote:
         | I don't know about other islands but I'm in Aruba at the moment
         | and you can get a PCR test in 8 hours. I imagine those days
         | will soon be over.
        
           | wzy wrote:
           | We have 2 private labs that can handle PCR tests and the
           | turn-around is 24-48 hours, best case. Now, 1 of the 2 is
           | booked out till February.
        
       | vondur wrote:
       | Surprising it took so long. I wonder if you are going to get some
       | sort of certificate that proves you have been vaccinated for
       | COVID once they roll out to everyone.
        
       | ngngngng wrote:
       | I recently had to get a negative COVID result to travel to Hawaii
       | to see family. Hawaii only accepted tests from a very limited
       | number of providers which complicated things, but after some
       | effort I made an appointment and got a test. The rest of the
       | process was very painless. We all had to keep masks on for the
       | entire flight of course since there was no requirement that we
       | all have a negative result before getting on the flight but it
       | was comforting to know that nearly everyone else on the flight
       | would have had a negative result so as to avoid the mandatory 14
       | day quarantine upon arrival.
        
       | rodgerd wrote:
       | It's interesting to that see the volume of science denial on HN
       | surrounding COVID continues.
        
       | rhodozelia wrote:
       | A similar requirement has been enacted in Canada and what has
       | happened is that Canadians with covid can't return home to Canada
       | and are stuck abroad. It really gives some teeth to the "do not
       | travel" recommendation - if you get covid abroad you can't come
       | home until you test negative. If you get covid at home and then
       | go abroad you can't come home until you test negative. I think
       | people who previously would have travelled and just risked it
       | will be a lot more careful now since they can't get home if they
       | are sick with covid. Instead of dozens of flights per day
       | entering canada with covid cases we now have zero [1].
       | 
       | [1] http://www.bccdc.ca/health-info/diseases-
       | conditions/covid-19...
        
         | triceratops wrote:
         | Small correction: you can't board a flight to Canada. You're
         | always welcome at a land border without a test report in hand.
         | In which case you'll be required to spend 14 days in government
         | quarantine.
        
           | sonotmyname wrote:
           | You spend the 14 days in quarantine either way - land or air.
           | And it's not 'government quarantine' for most people - it's
           | just a hotel room, airbnb or wherever your approved plan says
           | you're going to quarantine.
        
         | eloff wrote:
         | I'm totally ok with covid19 positive Canadians being stuck an
         | unable to return home until they test negative. That's fair.
         | 
         | But people are getting stuck because they can't get results
         | back in the 72 hour window. That's really not cool.
        
           | triceratops wrote:
           | There are labs that guarantee < 72-hour turnaround times for
           | travel. It costs extra but hey, that's life. This pandemic
           | has been around for a year now so if it was that important to
           | travel, it's worth paying extra for the test.
        
             | jonwachob91 wrote:
             | 72 hour? In Florida you only pay out-of-pocket if you get
             | the 1 hour test...
        
               | mminer237 wrote:
               | The 30 minute tests are antigen tests. The 72 hour tests
               | are PCR tests. Antigen tests can basically only detect
               | the virus if you're currently contagious. PCR tests can
               | detect the virus before and after you're contagious.
               | Airlines typically require the 72 hour PCR tests.
        
             | eloff wrote:
             | In Nevada it takes 5 days. Canadians are getting stuck
             | there.
             | 
             | In Central America - could vary a lot by country.
        
           | regimeld wrote:
           | "But people are getting stuck because they can't get results
           | back in the 72 hour window. That's really not cool."
           | 
           | That's their problem. Should have thought of that before
           | going on vacation, etc.
        
             | Hurdy wrote:
             | Now they are in countries in the Caribbean that have
             | managed the virus relatively well and are overloading their
             | public health system because they urgently need tests. But
             | who cares that Canada is now creating a problem for poorer
             | countries while gaining very little (because there's barely
             | any community spread there) - stupid tourists should have
             | thought of that before, right...?
        
               | jeromegv wrote:
               | Governments has been telling people for months not to go
               | on vacation, that is correct, they should have thought of
               | that before leaving.
               | 
               | They also gave 2 weeks notice so if you went somewhere
               | and didn't think you could get a COVID test, there was
               | still time to make it back home before the ban started.
        
               | Hurdy wrote:
               | If only these people would suffer that would be alright -
               | it was their mistake. But rich countries should not make
               | poorer countries pay for the bad decisions of their own
               | citizens. No matter how angry we are at them.
               | 
               | What Canada is doing with vaccines for poorer countries
               | is all great, but I think this is a bad policy.
        
             | [deleted]
        
             | eloff wrote:
             | Because they had a magic 8 ball to predict this outcome?
             | 
             | Given 98% of cases are internal spread, I just don't think
             | it's warranted.
        
               | graeme wrote:
               | You can pick up new variants abroad though. That's better
               | discouraged.
        
               | oseph wrote:
               | I don't think you need an 8 ball to predict that you
               | shouldn't travel during this global pandemic --
               | especially in the past 6 months when it's all hit the
               | fan.
               | 
               | Tough luck to those who get stranded, I say.
        
           | totony wrote:
           | >I'm totally ok with covid19 positive Canadians being stuck
           | an unable to return home until they test negative.
           | 
           | I am not; your home country should never deny you entry.
           | You're telling a citizen he is not welcome in his own
           | country, is that how you want to treat your citizens?
           | 
           | Quarantine is warranted but denying entry has a weird taste
           | to me
        
             | jeromegv wrote:
             | It's an imperfect solution. But thousands of people have
             | left to the beach in Mexico, Florida, etc. We aren't
             | talking of people that got surprised by COVID in March, we
             | are talking of people that bought a plane ticket in the
             | middle of the pandemic, traveled abroad for vacation, and
             | are now inconvenienced by the fact they need to get tested
             | to come back.
        
           | peytn wrote:
           | That sounds inconvenient. I've been ordered to stay at home
           | off and on for almost a year, and it's been inconvenient too.
        
           | smnrchrds wrote:
           | I am terrified of the possibility of this being retained
           | after the pandemic and expanded to cover other maladies.
           | There already is a concept called medical inadmissibility,
           | but it only applies to foreign nationals. It really concerns
           | me that we are not applying it to Canadians as well.
        
           | rhodozelia wrote:
           | my friend's father passed away from covid three weeks after
           | contracting it at a curling tournament which they obviously
           | shouldn't have held, even in a small town in the middle of
           | nowhere. he was 65 years old and had just retired. being dead
           | is also not cool.
        
             | eloff wrote:
             | I think I can be upset at both.
             | 
             | Only 2% of cases are coming from outside of the country, so
             | this seems mostly like a political thing than actually
             | being useful. There's a lot of lower hanging fruit to get a
             | 2% reduction. This seems too heavy handed in places where
             | it's not currently possible to do a 72 hour test.
             | 
             | At the very least give some options to those can't meet the
             | requirement. These people have to quarantine two weeks
             | after returning anyway - I just don't see the logic behind
             | this move.
        
         | ChrisArchitect wrote:
         | totally ok with letting them get stuck abroad. It's weird that
         | everyone is freaking out about people travelling when the
         | airports remain open and the guidance is totally about what ppl
         | do inside the country. If you must keep the airport open(IMO
         | should close them), let people leave and don't let them come
         | back. If they leave, it's their problem (and unfortunately,
         | some other country's). Stay at home.
        
           | nrmitchi wrote:
           | For non-essential travel, I can 100% agree with you.
           | 
           | Not all travel is non-essential though (to a varying degree
           | based on your belief of what "essential" encompasses).
        
       | ashtonkem wrote:
       | I get why they're doing this, but I fear as a society we've
       | learned the wrong lessons about testing.
       | 
       | These tests have a pretty high failure rate. That's probably ok
       | for social level spread tracking (with wide error bars) or low
       | volume contact tracing (where quarantining a few extra people is
       | worth it). It's far better than nothing of course, but it's also
       | far short of what we expect from something like a pregnancy test.
       | 
       | But as a means to sign people off as safe to travel? Yeah, not so
       | much. So many people have had the "one negative test so I can go
       | party" only to discover what a false negative is.
        
         | cbg0 wrote:
         | > These tests have a pretty high failure rate.
         | 
         | The rapid ones maybe, the PCR ones are quite accurate.
        
           | slumdev wrote:
           | PCR is sensitive, but at the cycle thresholds most labs use,
           | it is not specific.
        
       | jedberg wrote:
       | I don't understand why we don't implement the isolation
       | procedures of countries that have gotten this under control,
       | following these procedures for both foreign citizens AND US
       | citizens:
       | 
       | - When you arrive in the US, you either spend two weeks at a
       | government approved hotel, at your expense, which is monitored by
       | federal agents to make sure you don't leave your room. You pay
       | for room service for two weeks to get food. This is what
       | Singapore does.
       | 
       | - If you don't want to stay at the government hotel, you agree to
       | let the government track your cell phone for two weeks to make
       | sure you stay in your home, and randomly call you twice a day to
       | make sure you didn't ditch your phone. This is what Taiwan does.
       | 
       | As a plus, all the hotels near airports would be so thankful for
       | all the forced business to make up for the loss of travel
       | business.
       | 
       | They should have been doing this for the last nine months.
       | 
       | Edit: And obviously combine these rules with a relief bill that
       | helps the industries that are hurt by these rules, or you know,
       | everyone.
        
         | syshum wrote:
         | I know its probably crazy to ask, but tell me where in the US
         | Constitution does the federal government have the power to
         | force me into a hotel at my expense
         | 
         | I know in "times of emergency" people seem to think the
         | constitution is suspended and the government as "unlimited
         | power" but last I checked Emperor Palatine was a fictional
         | character, and saying "Singapore does" well Singapore is an
         | Authoritarian nightmare IMO, one i do not really want to
         | replicate here in the US. I pass taking public policy lessons
         | from Singapore
        
           | jedberg wrote:
           | It's part of protecting the borders. The Supreme Court has
           | already determined that anything within 100 miles of the
           | border is the "border zone" and gives the government broad
           | authority to enforce border protection within that zone.
           | 
           | Also, it could reasonably argued that it is part of their
           | "protect life" job.
        
             | syshum wrote:
             | That is a stretch of the reading of those provisions, the
             | court has generally (and wrongly IMO) allowed Federal Law
             | enforcement to stop people with in the border zones to
             | establish if they crossed the border illegally, once
             | Citizenship is established then normal protections snap
             | back into place
             | 
             | Even at border crossing the government has been allowed to
             | seize Devices and other things but they generally can not
             | prevent a US Citizen from entering, they can stop you from
             | bringing your stuff, but they cant stop you (outside the
             | limited questioning detainment certainly not 14 days)
             | unless they have an arrest warrant or some other cause of
             | action to arrest you
        
               | jedberg wrote:
               | I agree that they were wrong. But that is how things
               | stand now.
               | 
               | And they do have a cause to detain you -- you might be
               | carrying a deadly virus. Until you can prove otherwise,
               | they can detain you.
        
               | syshum wrote:
               | That is flipping due process on its head, the state has
               | the duty to prove I am a danger to others, I have not
               | duty to prove I am not
               | 
               | Having a position that I have to prove my innocence is
               | completely devoid of any due process and is
               | unconstitutional
        
               | solarengineer wrote:
               | Given that Virus and Biology have no obligation to be
               | compatible with various national and international laws,
               | it is upon human society and governments to work around
               | the virus.
               | 
               | Thus, for e.g., people in South East and Far East Asia
               | learned from the earlier pandemics and voluntarily wear
               | face masks to protect themselves and those around them
               | even when one has "just a cold or a cough".
               | 
               | People also agreed to socially and physically distance
               | when asked. The messages from scientists and doctors have
               | been enough proof of the dangers that the virus poses.
        
               | pertymcpert wrote:
               | Good thing that you're not in charge of anything.
        
               | eT8AZithxooKei6 wrote:
               | They wouldn't prevent you from entering. They'd just make
               | you quarantine once you did.
        
           | DeRock wrote:
           | Borders (and airports) are already a constitutional twilight
           | zone. Just to get into (or sometimes out of) one I have to go
           | through an X-ray scanner or manual groping that on its face
           | would violate the Fourth Amendment. But at the same time,
           | nobody is forcing me to go there.
        
         | cbg0 wrote:
         | > I don't understand why we don't implement the isolation
         | procedures of countries that have gotten this under control
         | 
         | I'd hazard a guess that it's because they don't want to
         | completely kill off tourism, an industry which is hurting
         | pretty bad because of covid (see TSA arrivals screened
         | https://www.tsa.gov/coronavirus/passenger-throughput)
         | 
         | No tourist would be interested in coming over to stay two weeks
         | on their own dime locked in a hotel, only then to be able to do
         | some actual traveling.
        
           | jedberg wrote:
           | I don't think a lot of tourists are interested in coming
           | right now anyway, given that our virus load is most likely
           | worse than their home.
           | 
           | That being said, this obviously needs to be paired with a
           | relief bill that helps those businesses survive.
        
             | cbg0 wrote:
             | If you've recently had covid, it might be the
             | perfect(cheapest) time to do it.
        
               | jedberg wrote:
               | Maybe, but it's still not clear if a previous infection
               | stops you from being an asymptomatic carrier, and we
               | don't want more asymptomatic carriers.
        
               | vecinu wrote:
               | I suppose I haven't read definitive literature on the
               | topic to be convinced but can you not catch it again,
               | especially a different strain?
               | 
               | It still feels awfully risky to travel at the moment.
        
               | oblio wrote:
               | The anecdotal evidence I have says that you can be
               | reinfected. I don't know if it was with different
               | strains, but it's still troubling.
        
               | NationalPark wrote:
               | Haha, maybe if you want to go camping or something? Not
               | too many tourist attractions are open these days...
        
           | us0r wrote:
           | Tourists have been banned since March I believe.
           | 
           | This was international arrivals at LAX August 11 (the worlds
           | third busiest airport):
           | 
           | https://imgur.com/a/fFsVSXf
        
           | totalZero wrote:
           | If you've stayed in a hotel during the pandemic, you know
           | that the tourism industry is doing abysmally anyway.
        
           | Fernicia wrote:
           | But there is no tourism in the U.S. right now. ESTAs and
           | Visas haven't been approved since April.
        
           | josephg wrote:
           | Speaking as an Australian, I'm not allowed to travel to the
           | US at all right now, unless I'm moving there permanently.
           | Keeping everything open (and thus keeping covid rates high)
           | isn't doing your international tourism sector any favours.
        
           | flukus wrote:
           | > No tourist would be interested in coming over to stay two
           | weeks on their own dime locked in a hotel, only then to be
           | able to do some actual traveling.
           | 
           | Depending on where they're coming from they'll have to do
           | that on the way home, so they're not interested in coming
           | anyway.
        
         | deanclatworthy wrote:
         | I think is a case of a little too late. There's probably a
         | higher risk of a traveller coming to US leaving with it, than
         | arriving with it - currently. If this had happened 9 months
         | ago, there might have been a chance of this working - with
         | better leadership in other areas - as other child comments have
         | pointed out.
        
         | usremane wrote:
         | Hope the two random phone calls are video calls and not just
         | audio. Otherwise people would leave the phone with someone at
         | home to answer for them.
        
           | SulfurHexaFluri wrote:
           | I assume this is combined with some kind of mandatory GPS
           | tracking. The GPS tracking knows the phones location and the
           | call confirms the user is next to their phone.
        
         | josephg wrote:
         | We do that in Australia too and its worked great. (Well, except
         | for a notable quarantine breach 6 months ago due to
         | mismanagement.)
         | 
         | The problem is all this is closing the fence after the horse
         | has already bolted. The average person arriving into the united
         | states is less likely to have covid than a resident. Currently
         | 2.7% of the US population is infected with covid19, compared to
         | 2.4% of people in the UK, 0.9% in Italy, 0.2% in Canada, and
         | ~0% in Australia, NZ, Singapore, India, China, etc.
         | 
         | Almost all new infections in the US come from domestic
         | transmission.
        
         | ErikVandeWater wrote:
         | Because this is a violation of the 5th amendment and the 1st
         | amendment right to peaceably assemble.
        
           | jedberg wrote:
           | The Supreme Court has already ruled that neither of those
           | apply at the border. Nor does the 4th.
        
             | ErikVandeWater wrote:
             | Would you agree with the court when it determined that the
             | rights of black people were different between northern and
             | southern states, or that internment of the Japanese was
             | legal during WWII? The supreme court has been wrong on many
             | issues for decades on end throughout US history. They
             | haven't all of a sudden become infallible in the last 20
             | years.
        
               | jedberg wrote:
               | They certainly aren't infallible, and were wrong on those
               | rulings. But until someone with standing brings a new
               | case, that is the law as it stands.
        
               | chillacy wrote:
               | If you're hinting that what is legal is not necessarily
               | right, it seems odd to fall back to this position when
               | the original comment about the 1st and 5th amendment are
               | legal, not moral.
               | 
               | Instead of just mentioning the 1st and 5th amendment, it
               | may have been better just to say that the US has a
               | culture of privacy and personal freedom.
        
               | ErikVandeWater wrote:
               | You are taking jedberg's comment too literally
               | 
               | > The Supreme Court has already ruled that neither of
               | those apply at the border. Nor does the 4th. reply
               | 
               | This is an extremely overbroad generalization.
               | 
               | The supreme court may or may not rule that forcing
               | someone to be surveilled by federal agents in order to
               | travel by plane is unconstitutional, or it may not. And
               | it may be right or wrong. My qualm is legal and moral.
        
         | ashtonkem wrote:
         | It's fairly straightforward: leadership matters, and a lot of
         | people who were supposed to be helming the ship were clearly
         | asleep at the wheel.
        
           | wrs wrote:
           | They were not asleep, they were deliberately letting the car
           | drive off a cliff because they thought admitting there was a
           | cliff there would make them look weak.
        
             | TeMPOraL wrote:
             | Also (to extend this metaphor to all three modes of
             | transport), they were sure that - should any cliff present
             | itself - the greatest nation on Earth will not fall down
             | it, but will boost off and fly towards the sunset.
        
             | SulfurHexaFluri wrote:
             | Probably also contributed by the fact that the opposition
             | pointed out that they should avoid the cliff so the only
             | option left is to intentionally drive off it.
        
           | 24gttghh wrote:
           | Nah they weren't asleep, but they were standing on the wrong
           | ship, looking backwards.
        
         | iamEAP wrote:
         | This would require a level of coordination and leadership at
         | CBP that we just haven't seen, at least under the current
         | administration.
        
       | balozi wrote:
       | By now people can purchase negative Covid PCR test results at
       | many international airports, sometimes for as little as $0.50.
       | Entrepreneurial spirit is hard to tame.
        
       | ghshephard wrote:
       | I don't at all see how this is relevant to the United States in
       | 2021, when COVID-19 is almost completely prevalent, and we
       | require universal vaccination to exit out of the pandemic -
       | International travel restrictions seem meaningless to me now -
       | though they would have been invaluable in January 2020, and maybe
       | even February 2020 - right now the major risk of COVID-19
       | infection is _inside_ the United States. A handful (or heck, even
       | hundreds) of people coming into the country won 't make any
       | difference when we have thousands of new cases a day regardless.
       | 
       | There's a reason Epidemologists don't put much stock in travel
       | restrictions once a pandemic is well underway around the world -
       | they don't do much good.
       | 
       |  _But_ - generally, having widespread (ideally very sensitive)
       | COVID testing for _any_ type of travel outside of the home is a
       | good thing. We should have it universally available. Ideally
       | <$10, something that everyone could do weekly, or even daily if
       | they travel a lot.
       | 
       | Just unclear what the focus on international travel is all about
       | here.
        
         | cactus2093 wrote:
         | I think all domestic and international travel should have this
         | requirement at a minimum. Nobody should be on an airplane
         | without a recent negative test. Or working in a factory,
         | hospital, or other indoor environment for that matter, it would
         | be great if essential workers could all routinely get tested
         | once or twice a week, though maybe that's not feasible.
         | 
         | I don't really get the international focus of this either, but
         | it seems like a step in the right direction.
        
         | solarengineer wrote:
         | Some rationale for blocking international travel - preventing
         | the spread of international variants, and preventing the
         | destination country from being overloaded by incoming
         | infections.
         | 
         | Most nations aren't getting the vaccines yet. Vaccination
         | distribution and delivery require complex logistics. Nations
         | that don't have a good public healthcare infrastructure need
         | time to gear up. Vaccinations have just started and are being
         | given in a phased manner. Blocking International Travel (or at
         | least mandating a 14 day quarantine) helps keep variants in
         | check.
        
       | mikeyouse wrote:
       | Just so silly. More theater. We're already seeing millions of new
       | cases per week including the strains with mutations to the target
       | spike proteins - what problem does this solve?
        
         | gojomo wrote:
         | In order to stop seeing "millions of new cases", every source
         | of new cases should be reduced.
         | 
         | International travel is an orderly place to apply a filter,
         | just as hospitals test all admits (even those without
         | symptoms).
         | 
         | Blocking all visitors from specific places - even places with
         | lower rates of prevalence than here! - was silly theater. This
         | is actually well-targeted to reducing the interactions of the
         | likely-infected with the uninfected.
         | 
         | (If a city or state/province even wanted to set up internal
         | borders, & require on-the-spot quick antigen tests to enter
         | regions of actual or attempted-infection control, perhaps even
         | anonymously, that'd also be a well-targeted intervention far
         | better than the other theater we've been fed so far.)
        
           | sonotmyname wrote:
           | > just as hospitals test all admits (even those without
           | symptoms).
           | 
           | Some may, but that's a county/state decision.
        
         | Exmoor wrote:
         | Well, it would've decreased the chances of a more infectious
         | strain becoming widespread in the US if it had been implemented
         | months ago. It could decrease the chances of worse strains that
         | might originate outside the US becoming established moving
         | forward.
        
           | outworlder wrote:
           | Problem is, new strains can develop anywhere. They don't have
           | to come from abroad.
           | 
           | Adding this rule but allowing people to run maskless because
           | "muh rights" is not going to accomplish anything.
        
             | Exmoor wrote:
             | Sure they can, but reducing the geographic spread would
             | reduce the chances of those randomly occurring variants
             | spreading quickly around the world. I would expect other
             | countries to require testing of international flights for
             | the same reasons.
             | 
             | The US is performing badly when it comes to controlling the
             | virus, but it could still get significantly worse.
        
         | briga wrote:
         | Probably would have solved maybe problems--that is, if it was
         | implemented half a year ago. As it is now it seems like too
         | little too late.
        
       | jtdev wrote:
       | I'm all for this, but I'm somewhat surprised that this isn't
       | being railed as "xenophobic"... wonder why we've suddenly had a
       | change in heart on these topics?
        
         | [deleted]
        
       | tinyhouse wrote:
       | Most US states already require a negative test or quarantine,
       | with some exceptions. The only issue is that almost no one is
       | enforcing it (maybe some airports do, I'm not sure). It makes
       | sense if it becomes like visa where airlines wouldn't let you
       | board the plane without it (until things are under control). It
       | can be an issue for emergency travel though. Thinking about it,
       | this should be of interest of airlines to protect their staff.
        
         | jeffbee wrote:
         | Right. Santa Clara County, California, has a mandatory 10-day
         | quarantine for anyone arriving from more than 150 miles from
         | its borders. This notice is posted in the airport but aside
         | from that there is no framework for enforcement. It is not even
         | all that easy to figure out what territory is outside this zone
         | and the county does not provide a map.
        
       | f430 wrote:
       | Are these PCR based tests? What is the accuracy rate? I was told
       | it is far from 100%.
       | 
       | So is it possible that someone might test negative but then is
       | actually asymptomatic?
       | 
       | This is exactly what happened last year in South Korea. People
       | were tested many times and they were negative but turned out they
       | were asymptomatic that the test kit failed to pick up.
        
         | ogre_codes wrote:
         | Nothing about the virus is going to be 100% effective. It's a
         | matter of compositing things that are 60% effective and 90%
         | effective and 50% effective.
         | 
         | If they require testing which is 80% effective, and masks which
         | are 80% effective, and get vaccination up to xx%... etc etc.
         | You eliminate vectors for the virus one at a time and
         | eventually there aren't enough vulnerable people contacting
         | each other in ways that are contagious.
         | 
         | (Percentages are guesses)
        
           | f430 wrote:
           | It isn't even 80% effective from the scientific journals I've
           | read last year, the best they can do is 40% and lower, I
           | think there is some inherent limitation in its accuracy.
           | 
           | I'd like to point out that many countries aren't running
           | multiple tests to make up for this low accuracy like South
           | Korea. _It is the general consensus among experts that the
           | actual case numbers are far far higher than what is reported_
           | 
           | So if the 40% rate is true then the law of large number
           | suggests the screening test is completely useless because it
           | misses the 60% of the time. It's just like the Casino where
           | the virus has a huge edge over our detection and prevention
           | measures.
        
             | ogre_codes wrote:
             | You are missing the point.
             | 
             | Every time you block some percentage of spreaders, you are
             | reducing the reach of the virus. Even if a measure is only
             | 20% effective, it's worth investing in.
             | 
             | If it's 40% effective and masks are 40% effective,
             | collectively they are 64% effective together. This idea
             | that measures need to be 90% effective is bunk.
             | Incrementally we can improve the odds significantly.
        
               | tim-- wrote:
               | How did you come up with the 64% number?
        
               | f430 wrote:
               | In most other situations I would agree with you but this
               | virus has a transmission R0 of 6!!! [1] This means even
               | if you block 40% that remaining 60% that slipped by will
               | overwhelm your medical infrastructure like what's
               | happening in Japan now who didn't follow South Korea's
               | standards (out of pride? so many countries chose to
               | ignore Taiwan and South Korea's advices in the early
               | days).
               | 
               | This is why you have extreme disparity between countries
               | like Taiwan, South Korea, Vietnam vs America, Europe,
               | Japan.
               | 
               | 40% doesn't mean you are catching 40% of the viruses
               | here. It means your detection is only at 40% capacity,
               | like your vision.
               | 
               | I'm arguing for multiple PCR tests spread out over a few
               | weeks to make up for this low accuracy. I doubt many
               | people will put up with it like they did in South Korea
               | or Taiwan. Especially North America where the individual
               | rights come before the well being of society.
               | 
               | I actually thought that North American and Europe were
               | anti-fragile, this virus quickly proved otherwise. How do
               | you force individuals to comply with rules that is
               | designed for the greater good when they've been told all
               | their life their individual needs come first and the rest
               | of society has to accommodate them?
               | 
               | Even getting people to wear masks is still an issue. I'm
               | utterly disillusioned after 2020, the racist attacks from
               | both sides of the political spectrum, the misinformation
               | built upon centuries of stereotypes and exceptionalism,
               | and a politically divided environment to boot.
               | 
               | As soon as we get more data on the vaccine's
               | effectiveness on dealing with mutation variants over 1 or
               | 2 years, I am getting the fuck out of North America and
               | taking all the jobs with me.
               | 
               | Because this isn't the first pandemic and it sure as hell
               | won't be the last, and I highly doubt people will have
               | learned their lesson. Conspiracy, memes, and other
               | incompetent thinking that arises from laziness. People in
               | North America and Europe have lived comfortably for a
               | long time post-WW2, relying on economic hegemonies,
               | military intervention, immigration to do the dirty work,
               | and I believe they are in decline now. Sure America will
               | remain #1 military superpower but front lines have simply
               | shifted away from trenches to our minds where you can
               | conquer and control how people think in foreign
               | countries. This is what unrestricted warfare looks like
               | and we are seeing the fruit of this labor to the delight
               | of its enemies.
               | 
               | [1] I recall reading Dr. Feigl-Ding's twitter last year
               | which pointed to an American journal that cited this
               | figure back in 2020 but I can't find it right now.
        
               | sonotmyname wrote:
               | Your R0 number is waaaay off. Like 2-3x higher than
               | generally observed.
        
               | ogre_codes wrote:
               | Maybe I was misunderstanding your original point.
               | 
               | Are you suggesting closing international flights entirely
               | or tighter restrictions should be required?
               | 
               | I've just heard quite a few people suggesting that if
               | some counter-measure isn't "good enough" we shouldn't
               | bother with it. I thought that's where you were going
               | with this.
               | 
               | I don't object to tighter measures or double tests at
               | all.
               | 
               | Also, I understand what you meant by 40% effective.
        
               | selimthegrim wrote:
               | Measles has 6, where are you getting this number from?
        
         | slumdev wrote:
         | > So is it possible that someone might test negative but then
         | is actually asymptomatic?
         | 
         | No, with PCR, the opposite is true. It is most likely that
         | someone who is "positive" but asymptomatic has such a miniscule
         | amount of virus in their system that they're not infectious.
        
           | f430 wrote:
           | > asymptomatic has such a miniscule amount of virus in their
           | system that they're not infectious.
           | 
           | https://www.advisory.com/daily-
           | briefing/2021/01/11/asymptoma...
           | 
           | 60% doesn't seem miniscule
        
             | [deleted]
        
             | slumdev wrote:
             | > the researchers presumed that 30% of individuals who
             | contract the new coronavirus never develop symptoms but
             | remain 75% as infectious as those who do develop symptoms.
             | 
             | They made up some numbers and played with the math. It's
             | conjecture, not research.
        
       | top_post wrote:
       | The country most ravaged by COVID-19 where the spread is entirely
       | localized, requires international passengers... good thanks.
        
       | mrfusion wrote:
       | It Seems like a good idea but I worry about the slippery slope
       | effect.
       | 
       | Can they require this for flu? How will they handle false
       | positives? What about something like HIV? What if you need to get
       | home for medical treatment or a family emergency?
        
         | BugsJustFindMe wrote:
         | > _Can they require this for flu?_
         | 
         | I think they should. But the flu isn't as virulent as COVID.
         | 
         | > _What about something like HIV?_
         | 
         | You can't get HIV by someone breathing on you. How many people
         | do you usually share needles with on airplanes?
        
         | root_axis wrote:
         | The slippery slope argument is generally regarded as a logical
         | fallacy because the argument can be applied to anything. You
         | should at least offer an explanation of why believe the
         | slippery slope is a risk in this case. What interest would the
         | U.S. have in requiring Flu or HIV tests for travel? The reasons
         | for requiring a covid test are obvious unless you're a person
         | that believes covid is equivalent to the flu.
        
         | kevinmgranger wrote:
         | None of those are really considered pandemics.
        
           | renewiltord wrote:
           | HIV/AIDS is definitely frequently considered a pandemic, and
           | at least a global epidemic. In any case the obvious
           | difference is that it isn't as contagious.
        
             | snakeboy wrote:
             | Specifically, it's not airborne, which is the only relevant
             | mode of spread in an airplane.
        
       | outside1234 wrote:
       | Serious question - is it allowed to travel to Europe or Asia
       | right now from the US for non-relocation purposes?
       | 
       | I'm always stunned when I see these questions because I am like
       | "People are traveling internationally - test or no test????"
        
         | netsharc wrote:
         | Most if not all of Europe is closed to tourism:
         | https://reopen.europa.eu/en
         | 
         | But they'll let people in who have long term residency permits,
         | or to visit long term partners, sick family members, or e.g. if
         | their young children live there.
         | 
         | For Switzerland I know there's even a clause that lets you in
         | if you have to go there for business. Kanye West was spotted in
         | the country last month, I guess he was allowed in because he's
         | building a villa there.
        
           | 6nf wrote:
           | All countries have various levels of business travel, for
           | example obviously all courier services and shipping still
           | happens and other exceptions are made all the time depending
           | on the situation. Diplomats can still travel. Kanye West can
           | probably come up with a legitimate reason to travel to
           | Switzerland even if he spends half his time on the ski
           | slopes.
        
       | addicted wrote:
       | This makes sense. The only question is why this wasn't done as
       | soon as travel was restarted and tests became readily available
       | across the world.
       | 
       | This is at least 6-9 months too late.
        
         | jen20 wrote:
         | > The only question is why this wasn't done as soon as travel
         | was restarted
         | 
         | I'm not sure there was a point where travel was ever _stopped_?
         | At least not for US citizens or residents. This is not to say
         | the test requirement should not have been imposed (much)
         | earlier, however!
        
         | nostromo wrote:
         | Covid testing hasn't been, and still isn't, universally
         | available. Mexico, to pick one neighboring country with a lot
         | of cross-border traffic and cultural ties to the US, has done
         | 97% fewer tests than the US has, for example.
        
           | [deleted]
        
           | graeme wrote:
           | Do you mean per capita? If mexico did 97% less as an absolute
           | number that would mean they test more than the US per capita.
        
             | smnrchrds wrote:
             | Population of Mexico is 38% of the population of the US,
             | not less than 3%.
        
             | doubleunplussed wrote:
             | How do you figure? Mexico and the US's populations only
             | differ by a factor of ~2, and Mexico is the smaller one.
        
         | cush wrote:
         | > why wasn't this done as soon as travel was restarted
         | 
         | Half our country's leadership being science deniers is a start
        
           | peytn wrote:
           | I recall that the science deniers were the ones in favor of
           | border restrictions. Besides, I don't envy anybody whose
           | position is so weak they must resort to finger pointing. A
           | scientist would let the data speak.
        
             | us0r wrote:
             | > A scientist would let the data speak.
             | 
             | Yet many schools in the US are still closed.
        
               | peytn wrote:
               | It's clear through this all that we've seen great power
               | wielded. Regardless of who you support, I hope anybody
               | reading this remembers that there are more important
               | things than winning. The government has a monopoly on
               | violence. It doesn't need you that much. Our kids are the
               | losers when we allow ourselves to be pitted against each
               | other.
        
         | baybal2 wrote:
         | That's an irony. USA is pretty much a fortress for as long as
         | border security goes, and it had the best chance of any nation
         | to avoid Covid impact by shutting itself off from the world
         | using mechanisms of border security only.
         | 
         | Yet, for some completely unfathomable reason, it didn't.
        
           | generalizations wrote:
           | The US did try and close the borders.
           | 
           | https://www.whitehouse.gov/presidential-
           | actions/proclamation...
           | 
           | https://www.cnn.com/2020/02/02/us/coronavirus-us-travel-
           | rest...
        
           | throwaway7874 wrote:
           | Unfathomable? People do have short memories. Remember this?
           | 
           | https://www.nbcbayarea.com/news/local/nancy-pelosi-visits-
           | sa...
           | 
           | Trump floated the idea of cancelling flights, initially from
           | China, cause that was the only hot spot, back in Winter only
           | to be called a racist.
        
             | bufferout wrote:
             | Can you explain what Pelosi's Chinatown visit has to do
             | with flight cancellations. And also who called Trump a
             | racist for proposing flight bans.
        
           | zaroth wrote:
           | You would need more than just a pre-travel testing
           | requirement. You would also have needed an arrival quarantine
           | and post-arrival testing.
           | 
           | I wonder what percent of asymptomatic positive cases pre-
           | arrival testing actually catches. I'm sure that number also
           | changes depending on how many days before traveling you're
           | allowed to get the test.
           | 
           | And to actually prevent COVID from entering the US, I think
           | you would have needed all of that fully in place in January,
           | or perhaps earlier.
           | 
           | Effectively what this would have meant is a total border
           | closure for several months at the beginning of the year. I'm
           | not sure if that would have literally been impossible, but I
           | think it's totally fathomable why that didn't happen.
        
             | baybal2 wrote:
             | > You would need more than just a pre-travel testing
             | requirement. You would also have needed an arrival
             | quarantine and post-arrival testing.
             | 
             | Yes, and those are what US has in abundance, but does not
             | use for some reason.
             | 
             | I believe every international airport has quarantine zones,
             | and US has quite extensive TB quarantine infrastructure it
             | could've reused.
             | 
             | Lastly, it could've finally put its incarceration industry
             | to some good use.
             | 
             | It's very much like US found it had many months worth of
             | PPE stockpiles laying forgotten in diffent institutions
             | long after US spent hundreds of millions to rush order it
             | from China.
        
             | SulfurHexaFluri wrote:
             | Australia has had these measures in place for a while now
             | but quite a while after January and they work pretty well.
             | I think one of the very effective tools Australia has is
             | the ability to close borders with other states. In the US
             | even if one state is doing pretty well, it doesn't matter
             | because people from other states will come in and ruin it.
        
             | ghaff wrote:
             | In January, outside of China (possibly elsewhere in Asia)
             | absolutely everything was business as usual. I was
             | traveling in Europe for 3 weeks at the end of
             | January/beginning of February and everything was 100%
             | normal.
             | 
             | The absolute earliest I could see significant shutting down
             | in the US would have been early March which is when
             | companies started canceling events, etc.
        
               | AniseAbyss wrote:
               | The Chinese were low key buying up as much medical
               | supplies in Europe as they could get their hands on and
               | flying them to China. This didn't raise any alarms.
               | 
               | The West displayed an enormous level of incompetence same
               | as the Chinese authorities but you can at least
               | understand why the CCP cadre in Wuhan was so negligent.
               | There is something in the human brain that makes people
               | incapable of recognizing danger until they experience it.
        
               | jcranmer wrote:
               | I don't have exact date timelines, but I know the large
               | company I work for decided that the US was a coronavirus
               | hotspot somewhere around the end of February and the
               | beginning of March and banned business travel to or
               | within the US. It was only in mid-March that they shut
               | down the offices themselves, a couple of days before
               | state or local governments began locking down.
               | 
               | I believe the current estimate is that there was
               | uncontrolled community spread in the US by late February,
               | and closing the borders to international travelers
               | wouldn't have done anything to prevent its spread in the
               | US.
        
               | ghaff wrote:
               | I was at a relatively smallish (maybe a few hundred
               | people) tech event in Phoenix the first week in March.
               | There had been _some_ consideration to canceling but they
               | went ahead. They were cleaning surfaces, doing elbow
               | bumps instead of handshakes but no masks, distancing,
               | etc.
               | 
               | I was supposed to head on to another fairly small event
               | in Tahoe the next week but the Thursday before, they
               | canceled it. Which TBH seemed excessive to me at the
               | time. (Though CA was starting to see an increase in
               | cases.) I got home, did some shopping before everything
               | went crazy but about a week later offices were closing,
               | etc.
        
               | rodgerd wrote:
               | Yes, that's about when it became politically feasible to
               | close the borders in New Zealand, as well.
        
             | [deleted]
        
           | pishpash wrote:
           | The reason is the US has more infections than almost anywhere
           | else so the enemy is already inside.
        
             | [deleted]
        
           | Supermancho wrote:
           | > USA is pretty much a fortress for as long as border
           | security goes
           | 
           | More like a maginot line than a fortress.
        
           | ErikVandeWater wrote:
           | By unfathomable, I suppose you mean political?
        
           | [deleted]
        
           | InTheArena wrote:
           | I don't know if you remember, but when Trump started to cut
           | of china, it was immediately taken to be yet another
           | xenophobic action.
           | 
           | Then it was a matter of rapid COVID tests not being
           | available. It probably should been a few months ago.
        
             | chillwaves wrote:
             | Except that's not what he did.
             | 
             | https://www.factcheck.org/2020/03/the-facts-on-trumps-
             | travel...
        
             | amluto wrote:
             | It was. A sensible policy would have restricted all entries
             | -- at the time Trump restricted entry from China, there was
             | no credible reason to believe that it hadn't spread
             | elsewhere.
        
           | cblconfederate wrote:
           | The UK is and island and they didn't do it either. It's
           | learned helplessness: the world has given up on the idea that
           | it's possible to contain the virus.
        
           | notadev wrote:
           | Perhaps it would have been considered xenophobic?
        
             | aaronbrethorst wrote:
             | President Trump has never shied away from xenophobia from
             | the day he announced his candidacy [1] to today when he
             | gave a speech in Alamo, Texas [2] What Trump has done is
             | try to minimize public concerns about COVID-19. [3]
             | 
             | [1] https://www.washingtonpost.com/news/the-
             | fix/wp/2017/06/16/th...
             | 
             | [2] https://www.usatoday.com/story/news/nation/2021/01/12/a
             | lamo-...
             | 
             | [3] https://www.washingtonpost.com/video/politics/40-times-
             | trump...
        
             | vkou wrote:
             | Only if implemented in an inconsistent fashion - where
             | travel from some areas with high levels of COVID is
             | permitted, while travel from other areas with much lower
             | levels of COVID is not.
             | 
             | Which is currently the case. For example, travel from
             | Russia to the US is currently allowed, despite Russia
             | having >3 million COVID cases, but travel from Finland
             | (>37,000 COVID cases) and China (>97,000 COVID cases) is
             | prohibited.
             | 
             | It's not even a quid-pro-quo, because Russia has banned
             | travel _from_ the United States ( >22,700,000 COVID cases,
             | FYI.)
             | 
             | If you want to stop travelers spreading COVID in the US,
             | the first thing you should do is ban domestic travel, and
             | the second thing you should do is to update the travel ban
             | to include infection data from any point past ~April 2020.
             | 
             | If you're not willing to require someone flying from New
             | York to Nashville to have a negative COVID test before
             | getting on an airplane, you probably shouldn't spend too
             | much time wringing your hands over someone flying from
             | Hanoi to LA without one.
        
               | Dylan16807 wrote:
               | > Which is currently the case. For example, travel from
               | Russia to the US is currently allowed, despite Russia
               | having >3 million COVID cases, but travel from Finland
               | (>37,000 COVID cases) and China (>97,000 COVID cases) is
               | prohibited.
               | 
               | China is doing great if those numbers can be trusted.
               | 
               | But Finland having 80x fewer cases when they have 25x
               | fewer people isn't a big enough difference that I would
               | say "much lower levels".
        
               | sokoloff wrote:
               | That first person could drive from New York to Nashville
               | perfectly freely. The drive from Hanoi to LA is much more
               | difficult.
        
               | vkou wrote:
               | The first person would, most of the time, not bother
               | making the drive, which would have the same mitigating
               | effect on COVID transmission.
               | 
               | The real reason for why domestic flights don't require
               | negative tests is because it's politically inconvenient
               | for the government to ask for them, and because it would
               | gut airline revenue. "Controlling the spread" plays
               | second fiddle to matters of political expediency and
               | money.
               | 
               | That, and it's much easier to impose restrictions on
               | foreigners, even if, as of January 2021, those
               | restrictions don't accomplish much.
        
             | ceejayoz wrote:
             | If implemented in a xenophobic fashion, sure.
             | 
             | "We're testing all international travelers" is gonna be
             | hard to tag that way. "We're banning people coming in from
             | China but allowing in US citizens or permanent residents
             | untested and unscreened on those same flights" looks pretty
             | dumb from an epidemiological standpoint.
             | 
             | https://www.factcheck.org/2020/03/the-facts-on-trumps-
             | travel...
             | 
             | > "There's no restriction on Americans going back and
             | forth," Klain said. "There are warnings. People should
             | abide by those warnings. But today, 30 planes will land in
             | Los Angeles that either originated in Beijing or came here
             | on one-stops, 30 in San Francisco, 25 in New York City.
             | Okay? So, unless we think that the color of the passport
             | someone carries is a meaningful public health restriction,
             | we have not placed a meaningful public health restriction."
        
               | mikelward wrote:
               | Australia only allows citizens and residents back in. AND
               | they have to quarantine in designated facilities for two
               | weeks.
               | 
               | This is seriously failed leadership in the US. I haven't
               | heard from anyone on either side calling for such
               | measures.
        
               | chris11 wrote:
               | I don't really remember medical experts were saying in
               | early 2020, but I would have supported banning specific
               | countries if it was based on a framework that adjusted
               | bans as the number of cases changed.
               | 
               | I remember being unimpressed with the timing, starting
               | the ban right after the super bowl was over was a bad
               | idea. And the US should have immediately started working
               | towards testing all travelers.
        
               | cma wrote:
               | When Trump banned China he put in all the press releases
               | and announcement speeches that he also wanted to ban
               | Mexico (0 known cases at the time). This easily led
               | people to believe the whole thing was xenophobic.
        
               | MereInterest wrote:
               | Don't forget his earlier travel bans against primarily
               | Muslim countries, excluding countries that he personally
               | does business with. A history of xenophobic actions from
               | Trump means that he reasonably lost the benefit of the
               | doubt for later cases.
        
             | [deleted]
        
             | FuckButtons wrote:
             | Pretty sure the trump administration wasn't concerned about
             | that.
        
             | paxys wrote:
             | Not likely, considering the side which calls border
             | controls xenophobic was the one pushing for more
             | restrictions to stop the spread of COVID.
        
           | cavisne wrote:
           | The US has two huge land borders that people regularly
           | commute and trade across (not to mention cross illegally).
           | 
           | The only success stories with this strategy are Australia and
           | New Zealand, which are island nations completely isolated
           | from anywhere else.
           | 
           | Even single breaches of their 100% quarantine of all arrivals
           | caused outbreaks, and they also closed state borders.
           | 
           | This requirement begins to make sense now there is a vaccine,
           | as within the US the curve should bend down vs the rest of
           | the world, without the vaccine it wouldn't have achieved
           | anything.
        
             | k0stas wrote:
             | > The only success stories with this strategy are Australia
             | and New Zealand, which are island nations completely
             | isolated from anywhere else.
             | 
             | I don't know why it is ignored, but Vietnam (population
             | 90M) is a large country with many land borders, including a
             | border with China, and it has done spectacularly well
             | containing the coronavirus.
             | 
             | Not to take anything away from the island countries but
             | having no land borders makes limiting the influx of Covid
             | much simpler.
             | 
             | I don't know much about Vietnam's borders and how much
             | crossing there was in pre-Covid times but perhaps it should
             | be the Covid success model that all non-island nations
             | emulate.
        
             | cmrdporcupine wrote:
             | The land border with Canada has been closed (at the
             | Canadian government's request) since March. Only trade is
             | allowed, no personal travel at all. So, no, I don't think
             | it's impractical at all. Trump did complain a lot about us
             | closing it, though.
             | 
             | Air travel, however, has been permitted all along, and
             | mostly from what I can tell because of the fact that the
             | airline industry would go bankrupt otherwise. So there's
             | still people coming into Canada from the US constantly by
             | air, and likely breaking their 14 day quarantine period,
             | too. I know of some personally.
             | 
             | International travel is still being promoted heavily by
             | airlines, despite governments giving official guidance to
             | not go. Big scandals here in the last couple weeks about
             | politicians taking off for tropical vacations, after
             | instating tough lockdown rules and telling the public not
             | to travel.
             | 
             | Canada also instituted the negative test on arrival rule in
             | the last week or so. The caterwauling from our airlines was
             | just ridiculous.
             | 
             | The federal governments in both Canada and the United
             | States failed to make moves against travel early on, and
             | they just let it coast for months, as if this virus was
             | just going to go away on its own, because they were afraid
             | of bankrupting the airlines.
        
               | sonotmyname wrote:
               | > Canada also instituted the negative test on arrival
               | rule in the last week or so. The caterwauling from our
               | airlines was just ridiculous.
               | 
               | The negative test requirement is _only_ for air travel,
               | and in spite of your assertion, there is (limited) non-
               | trade travel allowed across the border. I 'm driving
               | across the border in a few weeks, and for some reason
               | don't need a test that I'd need if I flew.
        
             | kbar13 wrote:
             | you can close land borders just as you can close air
             | borders. the threat model is average joe unknowningly
             | carrying the coronavirus on their vacation / business
             | commute, not some special op team sneaking into the
             | country.
        
             | ceejayoz wrote:
             | > The only success stories with this strategy are Australia
             | and New Zealand, which are island nations completely
             | isolated from anywhere else.
             | 
             | Thailand, Cambodia, Vietnam have all had good overall
             | success.
             | 
             | https://www.theguardian.com/world/2020/dec/16/thailand-
             | cambo...
        
             | zkms wrote:
             | > The only success stories with this strategy are Australia
             | and New Zealand, which are island nations completely
             | isolated from anywhere else.
             | 
             | Taiwan is another such success story (7 deaths total, zero
             | domestic cases for over 200 days) and it's not exactly that
             | isolated from, well, the place where the pandemic started.
        
           | koolba wrote:
           | > Yet, for some completely unfathomable reason, it didn't.
           | 
           | Let's not forget that President Trump's order for closing the
           | borders with even just the source nation of the contagion was
           | labeled by the incoming President-elect as xenophobic[1]:
           | 
           | >> " _We are in the midst of a crisis with the coronavirus.
           | We need to lead the way with science -- not Donald Trump's
           | record of hysteria, xenophobia, and fear-mongering. He is the
           | worst possible person to lead our country through a global
           | health emergency._ "
           | 
           | [1]: https://twitter.com/JoeBiden/status/1223727977361338370
        
           | dizzystar wrote:
           | The relationship between border towns is very tight. You
           | would ruin the entire southern economy if you banned cross-
           | border travel entirely.
           | 
           | Back in the day before Mexico required passports to enter,
           | many people lived in Tijuana and worked in San Diego. I'm
           | sure this still happens today, and of course, you have to
           | consider that many migrants work in US farms, etc.
        
             | flukus wrote:
             | Border closures don't have to be all or nothing. In
             | Australia we closed borders between states but allowed work
             | permits in some places and had fuzzy borders (people within
             | 100km could cross) in others.
             | 
             | No measures are 100%, but they don't need to be.
        
             | Baeocystin wrote:
             | San Ysidro is still the busiest border crossing in the
             | world. It's nominally 'closed', but still open for trade.
             | In normal times you don't need a full passport, either-
             | just a passport card is fine, and realistically a CA
             | driver's license will get you through without trouble. It
             | kind of has to be that way- Tijuana and San Diego are far
             | too closely tied together for much else.
        
               | [deleted]
        
         | foolfoolz wrote:
         | testing capacity couldn't support it. no use doing this when
         | the results come a week later. if this was a requirement
         | earlier everyone would have complained it was just theater and
         | not helping
        
           | netsharc wrote:
           | In most countries they just want a negative test from the
           | origin country, so the country being visited doesn't have to
           | spend a test for the tourist. But it's not bulletproof, if
           | someone tests false negative and flies and infects a few
           | others.
           | 
           | Other countries (Taiwan, NZ?) quarantine you for 14 days on
           | arrival, and also test you...
        
             | srfvtgb wrote:
             | NZ currently requires a negative test if you are coming
             | from the UK or US as well as 14 day quarantine for arrivals
             | from anywhere (with more tests). You can also only return
             | if you are a NZ citizen or permanent resident or you get
             | some kind of special dispensation (notable recipients of
             | these include film crews and America's Cup sailors).
        
           | what_ever wrote:
           | India has had this requirement for a long time now (more than
           | 6 months IIRC). If you don't have the negative test, you need
           | to quarantine at preselected hotels near the airport after
           | arrival. Most international airports now also offer on
           | arrival tests.
        
           | peytn wrote:
           | I'm certain we could have figured out something earlier. We
           | spend several billion dollars annually on an organization
           | with a singular mandate to do so.
        
           | wendyshu wrote:
           | I'm pretty sure people would have understood that requiring a
           | positive test before entry is not just theater.
        
             | sokoloff wrote:
             | > requiring a positive test before entry
             | 
             | Negative test, not positive test (by the most common usage
             | of the phrase).
        
           | jaynetics wrote:
           | Maybe politicians should bite the bullet sometimes and do
           | stuff that will not be immediately understood by every
           | citizen.
           | 
           | Even without tests being widely available it would have been
           | wise to require all arrivals to quarantine, as Taiwan has
           | done with great success.
           | 
           | Yeah, sure, that would have been a nuisance for quite a few
           | people and painful for the airline industry, true, but
           | nowhere near as annoying and painful as things have ended up
           | now.
        
             | MartianSquirrel wrote:
             | Long term benefits? check
             | 
             | Good for our constituants? check
             | 
             | Good for whoever pays for my campaign? check
             | 
             | Oh, you say it will jeopardize my reelection?
             | _fuggetaboutit_ /s
        
         | anonunivgrad wrote:
         | There's really no point. Hundreds to thousands of people are
         | contracting covid every day in every city across America. Over
         | the course of five days in December, there were one million new
         | cases. People coming in on international flights is basically
         | irrelevant. That could start to change if the vaccine causes
         | community spread to plummet.
        
         | gibrown wrote:
         | They should do it for all air travel whether international or
         | domestic.
        
       | Ericson2314 wrote:
       | I'm pretty sure that there is enough domestic Covid that this is
       | pointless now?
        
         | SpicyLemonZest wrote:
         | Right this second, probably, but it'll become relevant again as
         | vaccines start to clamp down on the spread.
        
       | standardUser wrote:
       | It's not clear to me how this works. What if you've recently
       | recovered from a confirmed case of COVID-19? People can still
       | test positive up to 90 days after recovery, even though all
       | guidances say they stop being contagious 10 days from the onset
       | of symptoms (assuming symptoms have improved and no fever).
       | 
       | And what about people who have been vaccinated. Wouldn't proof of
       | vaccination be sufficient and spare limited testing capacity?
        
         | raverbashing wrote:
         | > What if you've recently recovered from a confirmed case of
         | COVID-19?
         | 
         | Then you wait until your test comes clear
         | 
         | > People can still test positive up to 90 days after recovery
         | 
         | In very rare cases
        
           | standardUser wrote:
           | A positive test result from > 10 days ago and a temperature
           | check should be sufficient. Otherwise, we're just asking
           | people to get tested over and over (and most guidances say
           | _don 't_ get tested within a few months of a positive
           | result).
        
         | 6nf wrote:
         | The vaccine question is going to be interesting. On one hand,
         | if I'm vaccinated then I should be able to fly right? But no
         | vaccine is 100% effective so do I need to get tested anyway?
         | Are we just gonna have to get used to supplying a DNA sample
         | every time we buy plane tickets?
        
         | karmasimida wrote:
         | Then they shouldn't go on a flight. Simple as that.
         | 
         | Traveling to another country is not a right but a privilege,
         | many of HN commenters always like to throw this line.
        
       | vmchale wrote:
       | You'd be more likely to catch it here than pretty much anywhere
       | else in the world lol.
        
         | umanwizard wrote:
         | Why?
        
       | redflame8 wrote:
       | How do you know the tests are legit
        
       | asah wrote:
       | Which direction? /s
        
       | harigov wrote:
       | They should have done this when there were far fewer cases. It
       | was really surprising to hear that you don't need any tests or
       | quarantining when you travel from other countries. Better late
       | than never, I guess.
        
         | surge wrote:
         | Well, got to remember, when there were far fewer cases, tests
         | were still in prototype phase, not widely available, and in
         | some cases unreliable (I think a lot of the Japanese cruise
         | passengers that got the WHO test tested negative, then later
         | came down with it after being released).
        
           | vorpalhex wrote:
           | We were also trying to test existing populations in busy city
           | centers and concerned about not having enough tests.
        
           | [deleted]
        
           | chris11 wrote:
           | Yeah, but we could have done more. There was a lot of supply
           | chain issues the government just ignored. I remember in early
           | 2020 when masks were unavailable a couple domestic mas
           | manufacturers were saying they weren't comfortable producing
           | more. They could scale up production, but they didn't want to
           | deal with suddenly firing people when things went back to
           | normal.
        
           | what_ever wrote:
           | Japan cruise case was in February 2020 which is about a year
           | ago now. Testing became more reliable a long time ago.
        
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