Two Distinct Episodes Of Whooping Cough Caused By Consecutive Bordetella Pertussis And Bordetella Parapertussis Infections In A Fully Immunized Healthy Boy.

We describe a 5-year-old, fully immunized boy with polymerase chain reaction-proven consecutive Bordetella pertussis and Bordetella parapertussis infections causing typical whooping cough at the age of 2 and 5 years, respectively. Neither pertussis immunization nor disease provides reliable immunity against further episodes of whooping cough.