Frontiers in Public Health | |
Quantitative SARS-CoV-2 Antibody Screening of Healthcare Workers in the Southern Part of Kyoto City During the COVID-19 Pre-pandemic Period | |
Takao Odagaki2  Kohei Fujita3  Osamu Kanai3  Shinpei Kada4  Hiroaki Hata5  Noriko Satoh-Asahara6  Tetsuya Tagami6  Akihiro Yasoda6  | |
[1] Department of Endocrinology and Metabolism, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Department of General Medicine, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Department of Infectious Diseases, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Department of Otolaryngology, Head and Neck Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Department of Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Division of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan;Division of Respiratory Medicine, Center for Respiratory Diseases, National Hospital Organization Kyoto Medical Center, Kyoto, Japan; | |
关键词: COVID-19; seroprevalence; SARS-CoV-2; ELISA; antibody; | |
DOI : 10.3389/fpubh.2020.595348 | |
来源: DOAJ |
【 摘 要 】
Background: The coronavirus disease-2019 (COVID-19) pandemic is associated with a heavy burden on the mental and physical health of patients, regional healthcare resources, and global economic activity. While understanding of the incidence and case-fatality rates has increased, there are limited data concerning seroprevalence of antibodies against the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) in healthcare workers during the pre-pandemic period. This study aimed to quantitatively evaluate seroprevalence of SARS-CoV-2 antibodies in healthcare workers in the southern part of Kyoto city, Japan.Methods: We prospectively recruited healthcare workers from a single hospital between April 10 and April 20, 2020. We collected serum samples from these participants and quantitatively evaluated SARS-CoV-2 IgG antibody levels using enzyme-linked immunosorbent assays.Results: Five (5.4%), 15 (16.3%), and 72 (78.3%) participants showed positive, borderline, and negative serum SARS-CoV-2 IgG antibody status, respectively. We found the mean titer associated with each antibody status (overall, positive, borderline, and negative) was clearly differentiated. Participants working at the otolaryngology department and/or with a history of seasonal common cold symptoms had a significantly higher SARS-CoV-2 IgG antibody titer (p = 0.046, p = 0.046, respectively).Conclusions: Five (5.4%) and 15 (16.3%) participants tested positive and borderline, respectively, for SARS-CoV-2 IgG antibody during the COVID-19 pre-pandemic period. These rates were higher than expected, based on government situation reports. These findings suggest that COVID-19 had already spread within the southern part of Kyoto city at the early stage of the pandemic.
【 授权许可】
Unknown