Silent spreaders of SARS-CoV-2 seem to contribute to a substantial number of U.S. cases. Ever the more reason to implement consistent face mask and physical distancing policies.

Medical Mythbusting Commentary for July 10, 2020

Source:
‘Silent spreaders’ may be responsible for half of U.S. COVID-19 cases, study finds

Reference:

The implications of silent transmission for the control of COVID-19 outbreaks