Serum Antibody Profile of a Patient With Coronavirus Disease 2019 Reinfection.

To, Kelvin Kai-Wang; Hung, Ivan Fan-Ngai; Chan, Kwok-Hung; Yuan, Shuofeng; To, Wing-Kin; Tsang, Dominic Ngai-Chong; Cheng, Vincent Chi-Chung; Chen, Zhiwei et al. · Clin Infect Dis · 2021

case_report · Level V

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Abstract

We recently reported a patient with coronavirus disease 2019 reinfection. Here, we show that serum neutralizing antibodies could be detected during the first episode but not at the presentation of the second episode. During reinfection, neutralizing antibodies and high avidity immunoglobulin G were found within 8 days after hospitalization, whereas immunoglobulin M response was absent.

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