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Volume 11, Number 11—November 2005


Neutralizing Antibody Response and SARS Severity

Mei-Shang Ho*, Wei-Ju Chen*, Hour-Young Chen†, Szu-Fong Lin†, Min-Chin Wang†, Jiali Di†, Yen-Ta Lu‡, Ching-Lung Liu‡, Shan-Chwen Chang§, Chung-Liang Chao¶, Chwan-Chuen King§, Jeng-Min Chiou*, Ih-Jen Su#, and Jyh-Yuan Yang†Comments to Author 
Author affiliations: *Academia Sinica, Taipei, Taiwan; †Center for Disease Control, Taipei, Taiwan; ‡Taipei Mackay Memorial Hospital, Taipei, Taiwan; §National Taiwan University, Taipei, Taiwan; ¶Taipei Hospital, Taipei, Taiwan; #National Health Research Institutes, Taipei, Taiwan

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Table 4

Seronegative rate of SARS-CoV patients, by source of infection*

Source of infection Total no. Seronegative rate, n (%)
Known 8/212 (3.7)
Patient† 81 3/44 (6.8)
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)
Unknown 23/51 (45.1)
Imported 22 11/20 (55.0)
Indigenous 36 12/31 (38.7)

*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.

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