How long are you #contagious when you have #covid19?
Likely 5-10 days (based on Ag tests and viral culture assays, two proxies for contagiousness)
😷Mask up until Day 10 or 2 neg ag tests to protect others. #testtoexit
Latest studies ⬇️ (1/3)
@DearPandemic
Likely 5-10 days (based on Ag tests and viral culture assays, two proxies for contagiousness)
😷Mask up until Day 10 or 2 neg ag tests to protect others. #testtoexit
Latest studies ⬇️ (1/3)
@DearPandemic
The latest #antigentest study lends more support to what we already knew from @michaelmina_lab and others: Day 5 is not the end of #covid contagiousness!
By @carina_marquez @DHavlir at @ucsf @czbiohub
Thx for flagging this study @bhrenton
(2/3)
By @carina_marquez @DHavlir at @ucsf @czbiohub
Thx for flagging this study @bhrenton
(2/3)
https://twitter.com/bhrenton/status/1580403911139074049?s=20&t=XShhBh9gboE6ZGdYR-qNZA
Viral culture is a great proxy for contagiousness. The latest study of #omicron found even higher % positivity after Day 5 than others.
% positive viral culture by day:
Day 5: 83% (44/53)
Day 7: 52% (26/50)
Day 10: 14% (7/52)
Day 14: 8% (4/50)
(3/3)
ncbi.nlm.nih.gov/pmc/articles/P…
% positive viral culture by day:
Day 5: 83% (44/53)
Day 7: 52% (26/50)
Day 10: 14% (7/52)
Day 14: 8% (4/50)
(3/3)
ncbi.nlm.nih.gov/pmc/articles/P…
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