Interesting science & sociology of science at once. This year will clearly force an updating of our understanding of role of aerosol transmission for respiratory pathogens. PLUS it's almost text-book Kuhnian in how it's happening: resistance, "epicycling" and then paradigm shift.
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As a reminder, until December 2020, WHO guidance said masks were NOT necessary indoors if people were separated by a mere 3 feet/1 meter. Almost every successful country defied WHO guidelines & directly targeted aerosol transmission as high risk—and/or had drastic travel limits.
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(The above is a tragedy. We shouldn’t have had to go through a whole year of a once-in—a-century pandemic like this. The history is well-documented and you can find all the guidelines and news conferences—and how many countries went their own way. Only upside: if we learn).
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Three things were obviously key to target mitigations: this was like SARS in two key ways—airborne and overdispersed—and not like SARS is one important way—presymptomatic transmission. Some countries had all three by March 2020. This is going to be a striking history book. Sigh.
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Okay, this is the longest I’ve seen.https://twitter.com/Spectatrix23/status/1373838693023223808 …
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Any facility that features “deep cleaning” for Covid mitigation is basically advertising it’s non-seriousness.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Are planes a low risk due to their air ventilation/filtration systems?
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NZ is great for understanding when transmissions can actually happen. Because of sequencing and limited numbers of cases, there was a paper from the MoH that could show in-flight transmission on a long-haul to NZ.
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It's right in your link,"so long as students and teachers wear masks." And at this point teachers who are willing have been vaccinated.
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I have to say that NZ is not exempt from hygiene theatre, but there's growing evidence that the Ministry of Health is understanding airborne transmission (e.g. the original study you referenced). When there's a case in the community we still see deep cleans.
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What was the result? How many people kicked off the flight infected, and how many were infected by the time the plane landed?
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