How does the incidence of pertussis (whooping cough) in the US vary from year to year?

Updated: May 02, 2019
  • Author: Joseph J Bocka, MD; Chief Editor: Russell W Steele, MD  more...
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Answer

Since the early 1980s, pertussis incidence has cyclically increased, with peaks occurring every 2-5 years. [10] Most cases occur between June and September. Neither acquisition of the disease nor vaccination provides complete or lifelong immunity. Protection against typical disease wanes 3-5 years after vaccination and is not measurable after 12 years. [11, 12, 13]


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