Among 176 patients who had had severe acute respiratory syndrome (SARS), SARS-specific antibodies were maintained for an average of 2 years, and significant reduction of immunoglobulin G-positive percentage and titers occurred in the third year. Thus, SARS patients might be susceptible to reinfection ≥3 years after initial exposure.
CITATION STYLE
Wu, L. P., Wang, N. C., Chang, Y. H., Tian, X. Y., Na, D. Y., Zhang, L. Y., … Liang, G. D. (2007). Duration of antibody responses after severe acute respiratory syndrome. Emerging Infectious Diseases, 13(10), 1562–1564. https://doi.org/10.3201/eid1310.070576
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