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  • Hib (Haemophilus Influenzae Type B)
  • Scheduling & Administration

What is the Hib vaccine schedule for children who have fallen behind or are completely unvaccinated?

Healthcare providers should refer to the catch-up schedule which is approved and published each year by the ACIP, AAP, and AAFP (available at The catch-up schedule will help determine the number of additional doses needed and the minimum intervals between doses. However, if a healthy child receives a dose of Hib vaccine at age 15 months or older, he or she does not need any further doses regardless of the number of doses received before age 15 months. Some high-risk children between the age of 15 months and 59 months will be recommended for two doses of Hib vaccine based on previous history of incomplete vaccination.

Last reviewed: July 31, 2022

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