Haemophilus Influenzae (HIB) is a vaccine used to protect children against Haemophilus influenzae type b infection (Hib disease). It is administered as follows:
Haemophilus Influenzae (Hib) vaccine dose is composed of ActHIB, Hiberix, or Pentacel. It is given as a 4-dose series to children aged the age of 2, 4, 6, 12-15 months.
Catch-up Hib Vaccine Schedule
Catch-up immunization for Hib vaccine can be administered at different ages as:
- If dose 1 is administered at the age of 7-11 months, children can receive dose 2 at least 4 weeks after and dose 3 (the final dose) at the age of 12 to15 months or 8 weeks after the 2nd dose (whichever is later).
- If the 1st dose was given at age 12-14 months, children can receive the 2nd dose (final dose) 8 weeks later.
- If the 1st dose of the vaccine was given at 12 months and the 2nd dose at 15 months, children should receive the 3rd dose (final dose) 8 weeks later.
- If 2 doses of PedvaxHIB are administered before the age of 12 months, the child should receive the 3rd dose (final dose) at the age of 12-59 months and at least after receiving the 2nd dose.
- If 1 dose is administered to children at the age of 15 months or older, no further doses are required.
Note: Children vaccinated between ages 15-59 months only need one dose.
Previously unvaccinated children aged 60 months or older and are not considered high risk do not require catch immunization.
The following considerations should be considered for children vaccinated with the Hib vaccine.
- Chemotherapy or radiation treatment: For children aged 12–59 months and receiving chemotherapy or radiation treatment, whether they are unvaccinated or have received 1 dose before the age of 12 months, they should get 2 doses, 8 weeks apart. Children vaccinated 14 days prior to the treatment or during the treatment should be re-vaccinated at least 3 months after the therapy treatment.
- Hematopoietic stem cell transplant (HSCT) – In such a situation, vaccination should be given as a 3-dose series which is administered 4 weeks apart any time from the 6 months all the way to the 12th month after a successful transplant. This is regardless of the child’s Hib vaccine history.
- For individuals with anatomic or functional asplenia (including sickle cell disease): 12–59 months old children, whether they are unvaccinated or have received 1 dose before the age of 12 months, they should receive 2 doses, 8 weeks apart. If they have received 2 or more doses before age 12 months, they should receive 1 dose 8 weeks after the last dose. Unvaccinated children 5 years and above should receive 1 dose.
- Elective splenectomy: Unvaccinated persons 15 months of age or older should receive 1 dose. 14 days before the procedure is recommended.
- HIV infection: Children with HIV and aged 12–59 months are to be handled as follows; unvaccinated children or those already given 1 dose of Hib vaccine before the age of 12 months should receive 2 doses 8 weeks apart. Children already given 2 or more doses before the age of 12 months should get 1 dose at least 8 weeks after receiving the last dose. Unvaccinated individuals aged 5-18 years should get 1 dose.
- Persons with immunoglobulin deficiency, early component complement deficiency: 12–59 months children who are unvaccinated or have received 1 dose before the age of 12 months should get 2 doses, 8 weeks apart. If they have received 2 or more doses before the age of 12 months, they should get 1 dose at least 8 weeks after the last dose.
Note: Unvaccinated persons are individuals who have received less than routine series if they are 14 months or younger or have not had any dose if they are 15 months old and above.
Free Schedule Charts
You can download these free templates in either PDF or Excel format. You can select different schedules records and discuss with your doctor the one that is most suitable for your child’s health needs.