Volume 11, Number 7—July 2005
Dispatch
Asymptomatic SARS Coronavirus Infection among Healthcare Workers, Singapore
Annelies Wilder-Smith*
, Monica D. Teleman*, Bee H. Heng†, Arul Earnest*, Ai E. Ling‡, and Yee S. Leo*
, Monica D. Teleman*, Bee H. Heng†, Arul Earnest*, Ai E. Ling‡, and Yee S. Leo*
Table 1
Clinical spectrum of SARS-CoV–positive cases and SARS antibody titers*
| Classification | No. (%) | Median titer (range) |
|---|---|---|
| Pneumonic SARS | 37 (82.2) | 1:6,400 (1:1,600–1:6,400) |
| Subclinical (nonpneumonic) SARS | 2 (4.4) | 1:4,000 (1:1,600–1:6,400) |
| Asymptomatic SARS | 6 (13.3) | 1:4,000 (1:400–1:6,400) |
*SARS, severe acute respiratory syndrome. CoV, coronavirus.
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