teenagers and adults with chronic cough actually have pertussis (whooping cough)

Here's a surprise. Many teenagers and adults with chronic cough actually have pertussis (whooping cough).

Most people assume they are protected since they got the vaccine as children...but immunity only lasts 6 to 10 years.

Pertussis boosters aren't given after age 6. The disease isn't as life-threatening...and the whole-cell vaccine caused too many adverse reactions in older kids and adults.

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