[HN Gopher] Extinction of the Influenza B Yamagata line during t...
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Extinction of the Influenza B Yamagata line during the Covid
pandemic (2022)
Author : JumpCrisscross
Score : 60 points
Date : 2024-10-21 16:26 UTC (6 hours ago)
(HTM) web link (pmc.ncbi.nlm.nih.gov)
(TXT) w3m dump (pmc.ncbi.nlm.nih.gov)
| thangngoc89 wrote:
| Need to add [2022] in the title.
| PreInternet01 wrote:
| Yeah, influenza type B 'Yamagata' has been mostly gone since
| 2020, but that's not necessarily because of COVID, but just
| because the virus is so variable. In fact, it's highly unlikely
| for an influenza sub-type to hang around for more than 18 months.
|
| In Europe, for 2024/2025, types A 'Victoria' and 'Thailand' (with
| type-B 'Victoria' and 'Yamagata' following closely, so you can
| see it's still there-ish) are expected to be the most virulent.
| but, as always with influenza, this might be wrong, which means
| vaccination might be slightly less effective, although still
| beneficial.
| jsnell wrote:
| In Europe, the 2024/2025 vaccine composition guidance[0]
| recommends excluding B/Yamagata, because it hasn't been
| detected since 2020 and "no longer seems to pose a threat to
| public health". That doesn't look like "still there-ish".
|
| [0] https://www.ema.europa.eu/en/news/eu-
| recommendations-2024-20...
| PreInternet01 wrote:
| Well, the strains that I listed are in the Sanofi
| Quadrivalent vaccine that is most popular in Europe (and
| being administered right now) as far as I know...
| taeric wrote:
| I'm confused on the reporting. The push from folks I'm seeing
| is definitely inline with social distancing and masking being
| the big wins.
|
| I thought, during the time, it was also felt that different
| respiratory viruses effectively out compete each other? Not
| seeing that mentioned much, at the moment.
|
| I'm also somewhat terrified that folks seem to be taking this
| in the anti-vaccine direction.
| timr wrote:
| Yeah, people who are making claims about social distancing,
| etc. are wildly leaping to conclusions.
|
| There are a number of more plausible / simpler alternatives.
| For example: the innate immune system gets activated whenever
| you have an infection. This is the most primitive form of
| immunity that you have, and is blunt (fever, snot, generic
| immunoglobulins, etc.) but effective at warding off pathogens
| of any sort. It's why you don't often get two different upper
| respiratory infections at the same time.
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(page generated 2024-10-21 23:01 UTC)