Table. Catch-up schedule for Haemophilus influenzae type b (Hib) vaccination for children <5 years of age
This schedule does not apply to people who have had a haematopoietic stem cell transplant. See Table. Recommendations for vaccination after haematopoietic stem cell transplant in children and adults in Vaccination for people who are immunocompromised: Secondary (acquired) immunodeficiency due to medical conditions.
This table assumes that the minimum interval between doses has been met. See also Catch-up guidelines for individual vaccines for children aged <10 years for more details.
| Number of Hib doses received previously | Current age | Age at 1st dose of Hib vaccine | Age at 2nd dose of Hib vaccine | Age at 3rd dose of Hib vaccine | Number of further primary dose(s) needed | Number of booster doses needed at age ≥ 18 months, or 8 weeks after the last dose (whichever is later) |
|---|---|---|---|---|---|---|
| None | <7 months | na | na | na | 3 | 1 |
| 7–11 months | na | na | na | 2 | 1 | |
| 12–17 months | na | na | na | 1 | 1 | |
| 18–59 months | na | na | na | 1 | None | |
| 1 | <12 months | <7 Months | na | na | 2 | 1 |
| <12 months | 7– 11 months | na | na | 1 | 1 | |
| 12– 17 months | <12 months | na | na | 1 | 1 | |
| 12– 17 months | ≥12 months | na | na | None | 1 | |
| 18– 59 months | <12 months | na | na | None | 1 | |
| 18– 59 months | 12 – 17 months | na | na | None | 1 | |
| 18– 59 months | ≥18 months | na | na | None | None | |
| 2 | <12 months | <7 months | <12 months | na | 1 | 1 |
| <12 months | 7-11 months | 7– 11 months | na | None | 1 | |
| 12– 17 months | <12 months | Any age | na | None | 1 | |
| 12– 17 months | ≥12 months | ≥12 months | na | None | None | |
| 18-59 months | <12 months | <12 months | na | None | 1 | |
| 18– 59 months | <12 months | 12-17 months | na | None | 1 | |
| 18– 59 months | Any age | ≥18 months | na | None | None | |
| 18– 59 months | ≥12 months | ≥12 months | na | None | None | |
| 3 | <17 months | <12 months | <12 months | <12 months | None | 1 |
| <17 months | At least 1 dose (most likely 3rd dose) at 12– 17 months | At least 1 dose (most likely 3rd dose) at 12– 17 months | At least 1 dose (most likely 3rd dose) at 12– 17 months | None | None | |
| 18– 59 months | <12 months | <12 months | <12 months | None | 1 | |
| 18– 59 months | At least 1 dose at ≥12 months | At least 1 dose at ≥12 months | At least 1 dose at ≥12 months | None | None | |
|
Footnotes: na=not applicable |
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