NIH study shows that the asymptomatic transmission of CoVid is weak, and concludes it should give comfort to those in public with concerns about asymptomatic transmission.

No study to date has detected live virus beyond day nine of illness despite persistently high viral loads. SARS-CoV-2 viral load in the upper respiratory tract appears to peak in the first week of illness, while SARS-CoV-1 and MERS-CoV...