Volume 11, Number 11—November 2005
Neutralizing Antibody Response and SARS Severity
|Source of infection||Total no.||Seronegative rate, n (%)|
|Patient's close contacts||55||1/43 (2.3)|
|Healthcare worker||82||2/71 (3.1)|
|Other worker‡||27||1/19 (4.0)|
|Family and social contacts||43||1/35 (2.9)|
*Seronegative rates of the 2 groups with known and unknown source of infection were significantly different (χ2, p<0.10–7).
†In-hospital patients experiencing nosocomial SARS infection.
‡Including laundry workers, cleaners, clerks, and ambulance drivers.