I received the tdap vaccine Wednesday afternoon and have been

Patient

Q: I received the tdap vaccine Wednesday afternoon and have been running a mild 100.4 fever until last night when my fever was 102.4. Is this normal?

Doctor

A:   Thank you for writing to us.

Yes, it is normal to have a fever when you are vaccinated. This is because the body is reacting to the components of the vaccine. The reaction will cause a release of lot of factors that increase the temperature.

If the fever does not subside after a week, please see a Doctor. All the best.

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