Asymptomatic SARS coronavirus infection among healthcare workers, Singapore.
We conducted a study among healthcare workers (HCWs) exposed to patients with severe acute respiratory syndrome (SARS) before infection control measures were instituted. Of all exposed HCWs, 7.5% had asymptomatic SARS-positive cases. Asymptomatic SARS was associated with lower SARS antibody titers and higher use of masks when compared to pneumonic SARS.
Wilder-Smith
Annelies
A
Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore. epvws@pacific.net.sg
Teleman
Monica D
MD
Heng
Bee H
BH
Earnest
Arul
A
Ling
Ai E
AE
Leo
Yee S
YS
D000328:Adult; D015331:Cohort Studies; D004196:Disease Outbreaks; D005260:Female; D006282:Health Personnel; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology* / Q000635:transmission*; D012846:Singapore / Q000453:epidemiology