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Secondary attack rates by continent
| North America (13a) | Asia (12b) | Europe (13c) | Australia (1) | |
|---|---|---|---|---|
| Child-to-Child Transmission (#) | 31/740 | 9/207 | 107/1085 | 2/198 |
| Child-to-Child Secondary Attack Rate (%) | 4.19% | 4.35% | 9.86% | 1.0% |
| Child-to-Adult Transmission (#) | 30/169 | 22/103 | 155/415 | 1/102 |
| Child-to-Adult Secondary Attack Rate (%) | 17.75% | 21.4% | 37.35% | 1.0% |
a4 studies excluded due to missing data
b5 studies excluded due to missing data
c6 studies excluded due to missing data
