SARS-CoV-2 Transmission: Viral, Host, and Environmental Factors. Practice Update
The authors conducted a literature review of the data on various modes of SARS-CoV-2 transmission. Live virus has been cultured from aerosols and environmental surfaces hours after inoculation in several experimental studies, but the real-world studies that detected viral RNA in the environment reported very low levels, and few isolated viable viruses. Strong evidence indicates that respiratory transmission is the dominant transmission mode and that proximity and ventilation are key factors. In the few cases where transmission via fomites or direct contact was presumed, respiratory transmission was not definitively excluded.
Pracice Update, 6 października 2020