Despite the modeled estimations of the burden of asymptomatic spread, the duration of viral positivity and infectiousness of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains understudied. The objective of the present study was to estimate and compare the time till viral clearance of SARS-CoV-2 in asymptomatic and non-critical symptomatic individuals. We studied 184 SARS-CoV-2-positive participants, of whom 145 were asymptomatic. Our analysis uncovered that time till viral negativity is similar for subclinical [median time till viral clearance: 11 days, interquartile range (IQR): 8, 14] and overt infections (median: 11 days, IQR: 9, 14) after controlling for age and sex. This has implications in understanding the period of infectivity for SARS-CoV-2 in order to plan adequate public health measures to control the community spread.
【저자키워드】 COVID-19, SARS-CoV-2, viral clearance, asypmtomatic, viral convergence, 【초록키워드】 coronavirus, Infection, Spread, Asymptomatic, Community, Analysis, public health measure, interquartile range, acute respiratory syndrome, symptomatic individuals, negativity, SARS-CoV-2-positive participants, implication, age and sex, 【제목키워드】 coronavirus 2, respiratory, individual, time, Till,