Liu A, et al. Clin Microbiol Infect 2020.
A newly identified severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of coronavirus disease 2019 (COVID-19) across the world. An understanding of the antibody responses to the viral components is very important for diagnosis and vaccine development. We herein estimated the longevity of specific antibodies against SARS-CoV-2, and reported antibodies disappeared in a moderate COVID-19 patient within 3 months after the onset of the symptoms.