Do Pertussis Vaccines Protect Against Bordetella parapertussis?

Abstract

We calculated the effectiveness of pertussis vaccine in preventing parapertussis among Oregon children 2 months to 10 years of age using 2 methods. During 2011–2016, the 2 VE methods found 66% (95% CI, 59–75%) and 82% (95% CI, 69–90%) effectiveness against parapertussis. Pertussis vaccine may induce cross-immunity.

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