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Who is at highest risk for complications from Hib vaccine?

Updated July 30, 2023

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There is a gap in medical knowledge in terms of doctors being able to predict who will have an adverse reaction to Haemophilus influenzae type b vaccination, and who will not.1

Persons at highest risk for complications from Hib vaccine are those who are advised not to get Hib vaccine.

IMPORTANT NOTE: NVIC encourages you to become fully informed about Haemophilus Influenzae Type B (Hib) and the Hib vaccine by reading all sections in the Table of Contents, which contain many links and resources such as the manufacturer product information inserts, and to speak with one or more trusted health care professionals before making a vaccination decision for yourself or your child. This information is for educational purposes only and is not intended as medical advice.


[1] Institute of Medicine Committee to Review Adverse Effects of Vaccines. Evaluating Biological Mechanisms of Adverse EventsThe National Academies Press 2012.
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