What is the incidence of meningococcal meningitis in the US?

Updated: Jul 16, 2018
  • Author: Francisco de Assis Aquino Gondim, MD, PhD, MSc, FAAN; Chief Editor: Niranjan N Singh, MBBS, MD, DM, FAHS, FAANEM  more...
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Answer

Since 1960, the incidence of meningococcal meningitis in the United States has been stable, at approximately 0.9-1.5 cases per 100,000 people per year. Most cases occur during winter and early spring.

Serogroups B and C have caused most cases of meningococcal meningitis in the United States since World War II. An increased frequency of serogroup B and Y meningococci has been noted since 1990. The frequency of localized outbreaks has increased since 1991. [5, 6]


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