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Secondary case rate by continent
| Country | Number of Studies | Total Index Patients | Number of pediatric cases | Number of adult cases | Number of total cases | Case Rate |
|---|---|---|---|---|---|---|
| All | 39a | 457 | 149 | 206 | 355 | 0.78 |
| North America | 13 | 73 | 31 | 30 | 61 | 0.84 |
| Asia | 12 | 105 | 9 | 22 | 31 | 0.30 |
| Europe | 13 | 267 | 107 | 155 | 262 | 0.98 |
| Australia | 1 | 12 | 2 | 1 | 3 | 0.25 |
aOne study (Danis) was excluded because it did not differentiate between pediatric vs. adult cases
