Protection from pertussis by the TdaP vaccine doesn’t last very long

Child receiving a vaccine

Harvard Health Blog When my patients come in for their 11-year check-up, I give them the TdaP vaccine. I explain to them that a big part of the reason we give it is to protect them against pertussis, or whooping cough. I talk about outbreaks that are happening all the time, how it can be […]