PT - JOURNAL ARTICLE AU - Koji Wada AU - Nobuhiko Okabe AU - Yugo Shobugawa TI - Infection and transmission of COVID-19 among students and teachers in schools in Japan after the reopening in June 2020 AID - 10.1136/bmjpo-2020-000854 DP - 2020 Sep 01 TA - BMJ Paediatrics Open PG - e000854 VI - 4 IP - 1 4099 - http://bmjpaedsopen.bmj.com/content/4/1/e000854.short 4100 - http://bmjpaedsopen.bmj.com/content/4/1/e000854.full SO - BMJ Paediatrics Open2020 Sep 01; 4 AB - We aimed to investigate the confirmed COVID-19 cases among students and teachers in elementary schools (ages 6–12 years) and junior high schools (ages 13–15 years) in Japan between 1 June and 31 July 2020. We requested all schools to provide reports when students or teachers tested positive for COVID-19. A total of 207 cases were reported among students. Household transmission was identified as the dominant transmission route, confirmed in 71.4% of elementary schools and 60.3% of junior high schools. A total of 39 cases were reported among teachers, of which transmission route was unknown in 72.4% of elementary schools and 90.0% of junior high schools.