A member asked:

Can it be harmful be vaccinated twice for yhe tdap pertussis vaccine 17 year old healthy female?

A doctor has provided 1 answer

Should be fine: If a person gets 2 tdap vaccinations in the same year (because she did not have a record of the first shot), she most likely will just get better antibody levels (more protection). Maybe the second shot can lead to more temporary soreness at the shot site in the arm, but many people have little or no soreness at all after shots.

Answered 3/22/2017

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Thank

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