New England Journal of Medicine (Massachusetts Medical Society)
Lirong Zou et al. 2020
Discharge criteria for confirmed COVID-19 cases ECDC TECHNICAL REPORT Researchers from China report that in upper respiratory specimens, the pattern of viral nucleic acid shedding in SARS-CoV-2-infected patients resembles that of patients with influenza; it also appears to be different from the pattern seen in patients infected with SARS-CoV-1 .
Zou et al. 2020 report that the viral load of asymptomatic patients was similar to symptomatic patients, indicating a transmission potential of asymptomatic or pre-symptomatic patients .
The study reports that patients with few or no symptoms had modest levels of detectable viral RNA in the oropharynx for at least 5 days .
6. Zou L, Ruan F, Huang M, Liang L, Huang H, Hong Z, et al. SARS-CoV-2 Viral load in upper respiratory specimens of infected patients. New England Journal of Medicine. 2020.