Biology / Bio 3291 · Atom · ~20 seconds
A Vaccine Trains Memory Without Causing Disease
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A vaccine presents an antigen resembling a pathogen's own, triggering B and T cell activation and memory, per Bio 3287, without disease.
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Memory cells from vaccine exposure treat later infection as a second exposure, per Bio 3287.
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"Vaccines give you the disease," per Bio 3289, ignores this cannot cause infection.