Table 2

Infection and transmission of COVID-19 among students and teachers in Japanese elementary and junior high schools from 1 June to 31 July 2020

Number of cases
N
Routes of possible transmission identified in schools based on suggestions by public health centres
Transmission in householdsTransmission in schoolsTransmission outside households or schoolsReturning from other countriesUnknown
N (%)N (%)N (%)N (%)N (%)
Elementary schools (ages 6–12)
 Students10575 (71.4)1 (0.95)9 (8.6)3 (2.9)17 (16.2)
 Teachers295 (17.2)03 (10.3)021 (72.4)
Junior high schools (ages 13–15)
 Students6338 (60.3)6 (9.5)3 (4.7)2 (3.2)14 (22.2)
 Teachers101 (10.0)0009 (90.0)