A member asked:

What does the immune system do? if it fights infection, why does everyone still get the flu and the cold?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

What is the level of: general immunity for the person? Has the person developed antibodies to the specific viruses that they are being exposed to? Are person who is immunodeficient is more likely to become infected. Or if the person is exposed to a germ that is novel to them - they are more likely to be susceptible.

Answered 2/23/2015

3.2k views

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