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A member asked:
How do vaccines work?
A doctor has provided 1 answer
Vaccines: From the CDC: Vaccines help develop immunity by imitating an infection, but this "imitation" infection does not cause illness. It does, however, cause the immune system to develop the same response as it does to a real infection so the body can recognize and fight the vaccine-preventable disease in the future. http://www.cdc.gov/vaccines/parents/vaccine-decision/prevent-diseases.html
Answered 5/4/2015
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