SARS-CoV-2 seroprevalence among healthcare workers in general hospitals and clinics in Japan

Coronavirus disease 2019 (COVID-19) has become a serious public health problem worldwide. However, little is known about the prevalence of COVID-19 among healthcare workers in Japan. We aimed to examine the seroprevalence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) antibodies among 2,160 healthcare workers in general hospitals and clinics in Japan. The prevalence of SARS-CoV-2 immunoglobulin G was 1.2% in August and October 2020, which is relatively higher than that in the general population in Japan. Because of the higher risk of COVID-19 infection, healthcare workers should be the top priority for further social support and vaccination against SARS-CoV-2.