This is actually a great question. A lot of evidence that talking/singing and maybe just breathing around people from close enough range is sufficient to transmit the virus—and if you have a mask on, the amount one sheds is cut down dramatically.https://twitter.com/LucidLeaguing/status/1252654696029982721 …
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Arkansas: two people with COVID attended church events and infected *at least* 32 out of 92 (not everyone was tested because of guidelines at the time) leading to four deaths. The attack rate was as high as 35 cases out of 45 people for one of the events. https://www.cdc.gov/mmwr/volumes/69/wr/mm6920e2.htm?s_cid=mm6920e2_w …pic.twitter.com/42mkL70eDT
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New superspreader study from Hong Kong. They find 20% of infections are responsible for 80% of transmissions and a (k) of 0.45. Usual suspects: bars, restaurants and a wedding. Fourth new paper on SSE. (Authors
@bencowling88 ,@gmleunghku et al.). https://www.researchsquare.com/article/rs-29548/v1 …pic.twitter.com/ESvHKiJfPK
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The difference between droplets and aerosols becomes only semantic if we observe that particles generated by mere speech circulate in unventilated rooms and infect the majority of people present. Much research after this was done by
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It seems the magic combo is - spending a length of time in a not well ventilated room with substantial numbers of people. You could add the WA church choral group study to your list. CDC on choral group COVID outbreak: https://www.cdc.gov/mmwr/volumes/69/wr/pdfs/mm6919e6-H.pdf?deliveryName=USCDC_921-DM28169 …
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Our aim in fighting this virus (before medicine, ofc) should be all about dilution. Dilute the concentration of virus wherever you are. Outdoor spaces do that. Open windows. If inside, portable air filters can do that. Masks obviously do that, at the last moment before ingress.
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No financial ties to air quality device companies (
), but I highly recommend ppl use indoor air quality monitors. They can't detect virus directly, but they can show build up of CO2, moisture, VOCs, dust. If those things are building up, you probably have a room where virus can - Show replies
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If the weather was nice, why the hell didn't they hold it outdoors?
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The meeting was February 20th
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Normal bir diyalog bile yeterli. https://www.pnas.org/content/pnas/early/2020/05/12/2006874117.full.pdf …
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They are also now saying the woman had mild symptoms, muscle aches & runny nose while in Germany. No one spoke to her when that was published. But it does seem extended close contact in a enclosed space is more likely to lead to transmission.
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