10-26-07 - BIO 311D 10/26/2007 9:04:00 AM Humoral Immune...

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BIO 311D 26/10/2007 09:04:00 Humoral Immune response v. Cell-mediated immune response Defenses enhanced (vaccines and allergies) immunizations vaccines—like antigens but are non-pathogenic vaccination—injection of weakened or killed microbes that stimulate  development of memory cells, so that when a pathogenic strain comes, the  memory cells already exist to kill the foreign invader allergens—pollen, food, dust, spores allergies—inappropriate immune response to some generally harmless  substance.  It essentially overreacts AIDS Symptoms o Flu-like o weight loss, fever, night sweats, enlarged lymph nodes caused by RNA viruses destroy helper-T cells (CD4+ T cells) infected helper-T cells make more viruses infect more helper-T cells immune system shuts down Video Video—Role of B cells Video—Helper T-cells Video—cytotoxic T-cells Video—antibodies
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10-26-07 - BIO 311D 10/26/2007 9:04:00 AM Humoral Immune...

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