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Seroconversion (A1: 3-dose study arm; A2: 2-dose study arm).
| Group A1 (2 month old) |
Group A2 (4-month old) |
P value | |||
|---|---|---|---|---|---|
| % | 95% CI | % | 95% CI | ||
| Type 1 | 99.6 | 98.0–99.9 | 100.0 | – | 1.000 |
| Type 2 | 97.1 | 94.3–98.5 | 99.2 | 97.3–99.8 | 0.111 |
| Type 3 | 100.0 | – | 98.1 | 95.6–99.2 | 0.028 |
