A member asked:

Why do you need to repeat vaccinations if you can't find a record of having gotten them? can a double dose hurt you?

A doctor has provided 1 answer

Population safety/no: Whether or not you care if you get some of these diseases is less an issue than the possibility you could carry them to someone who does. A double dose of vaccines can just boost existing immunity.The only negative would come if you were one of the rare people allergic to some component of the vaccine.

Answered 1/16/2015

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