Covid-19 spreads through air, long distance

1 pointsby zed88about 4 years ago

1 comment

moonyabout 4 years ago

<a href="https://www.thelancet.com/action/showPdf?pii=S0140-6736%2821%2900869-2" rel="nofollow">https://www.thelancet.com/action/showPdf?pii=S0140-6736%2821...</a>