| Vaccine type | Minimal interval between dose 1 and 2 | Minimal interval between dose 2 and 3 | Minimal interval between dose 3 and 4 | |
|---|---|---|---|---|
| Hepatitis B | 1 month | 2 months† | ||
| DTP/DTaP (DT)‡ | 4 weeks | 4 weeks | 6 months | |
| Hib (primary series) | ||||
| HbOC | 1 month | 1 month | 2 months and ≥12 months old§ | |
| PRP-T | 1 month | 1 month | 2 months and ≥12 months old§ | |
| PRP-OMP | 1 month | 2 months and ≥12 months old§ | ||
| Poliovirus | 4 weeks | 4 weeks | No earlier than 4 years | |
| MMR∥ | 1 month∥ | |||