[BSCI 223] - Final Exam Guide - Everything you need to know! (109 pages long)

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Practical uses of the immune system and select pathogens. Once you have b memory cells, the second time you"re exposed to antigen a, the body can fight off the pathogen faster. Anything not human will be considered a pathogen. Active natural immune response: natural exposure to antigen induces an immune response; immunity following an attack of measles. Passive natural immune response: transfer of antibodies or cells produced by others; temporary immunity from antibodies of the mother transferred to infant across the placenta or in milk. Active artificial immune response: deliberate exposure to antigen induces an immune response; immunization of children. Passive artificial immune response: antibodies in immune serum are introduced into the body; injection of rabies immune globulin after a dog bite. Vaccinations are injecting the virus into body so that the body can make memory b cells. Uses antigens from: avirulent organisms, purified from engineered organisms. Vaccines: intentional exposure to antigens, stimulate b cells.

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