SARS-CoV antibody prevalence in all Hong Kong patient contacts.
Leung GM., Chung P-H., Tsang T., Lim W., Chan SKK., Chau P., Donnelly CA., Ghani AC., Fraser C., Riley S., Ferguson NM., Anderson RM., Law Y-L., Mok T., Ng T., Fu A., Leung P-Y., Peiris JSM., Lam T-H., Hedley AJ.
A total of 1,068 asymptomatic close contacts of patients with severe acute respiratory (SARS) from the 2003 epidemic in Hong Kong were serologically tested, and 2 (0.19%) were positive for SARS coronavirus immunoglobulin G antibody. SARS rarely manifests as a subclinical infection, and at present, wild animal species are the only important natural reservoirs of the virus.