Chan Paul K S, Ip Margaret, Ng K C, Rickjason C W Chan, Wu Alan, Lee Nelson, Rainer Timothy H, Joynt Gavin M, Sung Joseph J Y, Tam John S
The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
Emerg Infect Dis. 2003 Nov;9(11):1453-4. doi: 10.3201/eid0911.030421.
Whether severe acute respiratory syndrome-associated coronavirus (SARS-CoV) infection can be asymptomatic is unclear. We examined the seroprevalence of SARS-CoV among 674 healthcare workers from a hospital in which a SARS outbreak had occurred. A total of 353 (52%) experienced mild self-limiting illnesses, and 321 (48%) were asymptomatic throughout the course of these observations. None of these healthcare workers had antibody to SARS CoV, indicating that subclinical or mild infection attributable to SARS-CoV in adults is rare.
严重急性呼吸综合征相关冠状病毒（SARS-CoV）感染是否可以无症状尚不清楚。我们调查了一家曾发生SARS疫情医院的674名医护人员中SARS-CoV的血清流行率。在这些观察期间，共有353人（52%）经历了轻度自限性疾病，321人（48%）全程无症状。这些医护人员均没有SARS-CoV抗体，表明成人中由SARS-CoV引起的亚临床或轻度感染很罕见。
