Tdap Vaccine — What to Know About Tdap Shots: Pertussis Protection for Adults

Tdap is the booster shot that keeps teens and adults protected against pertussis, the bacteria behind whooping cough, along with tetanus and diphtheria. The CDC's 2021 Vaccine Information Statement asks adults to stay current with a dose of Tdap or Td every 10 years. Protection from the pertussis portion fades with time. That slow fade is the catch. Prevention works as a set of habits, not a single event. Homes age too, and a companion guide on lead exposure in older homes applies the same preventive logic to paint and pipes. The sections below cover what the shot covers and when each dose falls due. They end with the signs that call for quick medical attention. More preventive guides sit in the prevention section. What Does the Tdap Vaccine Cover? The Tdap vaccine covers three bacterial diseases, and the CDC's 2021 statement describes each one in plain terms. Diphtheria and pertussis spread from person to person, while tetanus enters the body through cuts or wounds.

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