Comparison of symptomatic and asymptomatic infections due to severe acute respiratory coronavirus virus 2 (SARS-CoV-2) in San Francisco long-term care facilities
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY（2022）
关键词
COVID-19,Coronavirus,RT-PCR,SARS-CoV-2,asymptomatic,cycle threshold,long term care facility,mass testing,viral load
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