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Volume 29, Number 9—September 2023
Dispatch

Infection-Induced SARS-CoV-2 Seroprevalence among Blood Donors, Japan, 2022

Ryo Kinoshita, Takeshi Arashiro, Noriko Kitamura, Satoru Arai, Koki Takahashi, Tadaki Suzuki, Motoi Suzuki1Comments to Author , and Daisuke Yoneoka1Comments to Author 
Author affiliations: National Institute of Infectious Diseases, Tokyo, Japan (R. Kinoshita, T. Arashiro, N. Kitamura, S. Arai, T. Suzuki, M. Suzuki, D. Yoneoka); Japanese Red Cross Society, Tokyo, Japan (K. Takahashi)

Main Article

Figure 1

Reported COVID-19 cases among the general population and seroprevalence of SARS-CoV-2 among blood donors, Japan. A) Number of reported COVID-19 cases by date of report, 2020–2022. Orange line indicates cumulative number of reported cases per 1 million persons. Green shading indicates survey period. B) Weighted seroprevalence stratified of SARS-CoV-2 among blood donors from November 6–13, 2022, by age group and sex. Error bars represent 95% CIs.

Figure 1. Reported COVID-19 cases among the general population and seroprevalence of SARS-CoV-2 among blood donors, Japan. A) Number of reported COVID-19 cases by date of report, 2020–2022. Orange line indicates cumulative number of reported cases per 1 million persons. Green shading indicates survey period. B) Weighted seroprevalence stratified of SARS-CoV-2 among blood donors from November 6–13, 2022, by age group and sex. Error bars represent 95% CIs.

Main Article

1These senior authors contributed equally to this article.

Page created: July 17, 2023
Page updated: August 20, 2023
Page reviewed: August 20, 2023
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