Post B0yUgvLE30ALbQzhfE by dr2chase@ohai.social
 (DIR) More posts by dr2chase@ohai.social
 (DIR) Post #B0wt6jkJn3AzkmeWoa by cbarbermd@med-mastodon.com
       2025-12-04T21:02:28Z
       
       0 likes, 0 repeats
       
       67 students. 6 weeks. 87 infections.A new study finds the real driver of school virus spread isn’t close contact — it’s air.Poor ventilation (CO₂ >1000 ppm) nearly doubles transmission risk. Hours in shared classrooms (RR 3.17) matter far more than minutes spent near someone (RR 1.16).It’s the air we share. Fix ventilation.https://www.nature.com/articles/s41467-025-66719-3 #press
       
 (DIR) Post #B0wt6kx7Ix0ZUleGP2 by tomjennings@tldr.nettime.org
       2025-12-05T20:03:45Z
       
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       @cbarbermd This is news?! Close means shared air. What else could it mean? How can this be new information?
       
 (DIR) Post #B0yUgvLE30ALbQzhfE by dr2chase@ohai.social
       2025-12-06T14:39:32Z
       
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       @tomjennings @cbarbermd briefly close to a single person is just one person and not for long.  Sitting in a room full of people is more people (higher risk that one is contagious) and prolonged exposure (more time for air to mix).  The quantified difference in risk is new, and might motivate more people to do something about air quality.