What are the sexual predilections of Haemophilus influenzae type b (Hib) meningitis?

Updated: Jul 09, 2018
  • Author: Prateek Lohia, MD, MHA; Chief Editor: Niranjan N Singh, MBBS, MD, DM, FAHS, FAANEM  more...
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Reasonably well-conducted studies have demonstrated that 59-70% of Hib meningitis cases occur in boys. At least one prevalence study, performed prior to the availability of an effective vaccine, showed the annual prevalence of Hib meningitis among boys younger than 5 years to be 89 cases per 100,000 population, versus 37 cases per 100,000 population for girls in that age group. However, other studies have not confirmed a sex-related predilection for Hib meningitis.

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