Immunity

Science
Tutor: None Selected Time limit: 1 Day

Explain how vaccines lead to immunity against a pathogen

Nov 30th, 2014

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. Sometimes, after getting a vaccine, the imitation infection can cause minor symptoms, such as fever. Such minor symptoms are normal and should be expected as the body builds immunity.

Nov 30th, 2014

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Nov 30th, 2014
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