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Table 2 Context of transmission of cases by level of education

From: SARS-CoV-2 transmission in educational settings during an early summer epidemic wave in Luxembourg, 2020

Context

Preprimary and primary (~ 4–11 years)

Secondary (~ 12–19 years)

Total

Not present in school

25 (13.0%)

48 (20.7%)

73 (17.2%)

Presence unknown

45 (23.4%)

78 (33.6%)

123 (29.0%)

Primary case without secondary cases

88 (45.8%)

62 (26.7%)

150 (35.4%)

Primary case with secondary cases

14 (7.3%)

15 (6.5%)

29 (6.8%)

Secondary cases

20 (10.4%)

29 (12.5%)

49 (11.6%)

Total

192 (100%)

232 (100%)

424 (100%)

Effective reproductive rate a

0.20

0.38

0.27

  1. asecondary cases / total number of primary cases