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Fremont, CA
A 33-year-old male asked:

If fever means immune system is busy fighting infections, does that mean people have weakened immunity during fever, and are more prone to contagious diseases?

1 doctor answer1 doctor weighed in
Dr. John Chiu
Allergy and Immunology 57 years experience
In general-no: Fever is "partly" (aside from pyrogens from other sources) from cell death during the battle against the invaders. One may argue that during the height of the battle, the body actually is more immunologically active. For example, if you have an acute viral infection (other than Ebola, HIV etc), it is unlikely that you will get another one at the same time.

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Last updated Nov 30, 2017

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