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Table 2 Secondary Case Rate by Study Setting

From: Child transmission of SARS-CoV-2: a systematic review and meta-analysis

Setting Number of Studies Total Index Patients Number of pediatric cases Number of adult cases Number of total cases Case Ratea
Childcare 6 54 26 53 79 1.46
Household 22 314 85 159 244 0.78
Social Event 5 23 13 15 28 1.22
School 16 142 68 50 118 0.83
All Settings 39b 457 149 206 355 0.78
  1. aCase rate defined as the number of confirmed infections among all contacts, not considering the total number of contacts as not all contacts were known across all studies.
  2. bOne study (Danis et al) was excluded because it did not differentiate between pediatric vs. adult cases