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Biology, 21.02.2020 05:27, lupitasalas9283
immunity occurs when the person is exposed to a pathogen, develops the disease, and becomes immune as a result of the immune response. immunity can be induced by any substance that contains the antigen that is purposefully introduced into the body. For example, a vaccine stimulates a primary response against the antigen without causing symptoms of the disease. immunity is a short-term immunization due to the injection of that are not produced by the recipient's immune system. immunity occurs in the fetus during pregnancy, as certain antibodies are passed from the maternal blood into the fetal bloodstream.
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immunity occurs when the person is exposed to a pathogen, develops the disease, and becomes immune...
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