id author title date pages extension mime words sentences flesch summary cache txt cord-253006-r2a2ozrc Yan, Xiquan Duration of SARS-CoV-2 viral RNA in asymptomatic carriers 2020-05-24 .txt text/plain 493 39 57 title: Duration of SARS-CoV-2 viral RNA in asymptomatic carriers Notably, patient 2 carried SARS-CoV-2 viral for 32 days continuously after exposure to COVID-19 and tested positive for viral RNA in the respiratory sample for 13 days after first positive test onset. The results indicate that asymptomatic human can carry SARS-CoV-2 viral RNA after exposure to COVID-19, and the carriage seems long-lived. Further study is needed to determine the potential for and mode of contagion of asymptomatic carriers to develop more scientific control strategies. The long duration of asymptomatic infection with SARS-CoV-2 may warrant a reassessment of quarantine as the current outbreak. The US Centers for Disease Control and Prevention recommends that contacts of asymptomatic carriers self-isolate for 14 days [4] . Quarantine of asymptomatic carriers and identification of contacts are a crucial part of these control efforts. There is a great need for further studies on the mechanism by which asymptomatic carriers could acquire and carry SARS-CoV-2 that causes COVID-19. ./cache/cord-253006-r2a2ozrc.txt ./txt/cord-253006-r2a2ozrc.txt