How Effective Are Pertussis (Whooping Cough) Vaccines?

The pertussis vaccine is very effective, the immunity does wean over time for many people, so you get pertussis vaccine as a baby, age two, four and six months, ages 15 to 18 to months and then again at four to six years, and then as an adult you should get at least one A-cellular pertussis vaccine again, so you are supposed to be getting your tetanus booster about every ten years, one of those can be a pertussis.