Väärä hetki poistaa maskisuositus kouluista. (Tai yhtään mistään 😕) #FFP2 😷
Replying to @AbraarKaran
6/ I don't want to bury the punch line here but...here is the big problem. Cases are most infectious before or right when they are showing symptoms 11/12 transmission events in our study were from people with CT values <=21 (91.7%)
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6:45 PM · Oct 15, 2021

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