Microbiology and Immunology 2500A/B Study Guide - Final Guide: Immunoglobulin G, Superoxide, Desquamation
4 Dec 2016
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Document Summary
Bacteriology of infection & immunity: surfaces, air, water, are always mutating to outsmart your immune system. Purpose of immune system: protect us from microorganisms (called pathogens or pathogenic microorganisms) with potential to cause infectious disease. Microorganisms have the advantage that they can reproduce and evolve very quickly. Examples of pathogens include bacteria, virus (these 2 are most common) parasite, fungi. Contact with microorganisms is inevitable, they"re everywhere! Disease occurs when we"re unable to mount an effective immune response against a pathogen. We"ve greatly increased life expectancy from early 1900s by controlling infectious disease (ie. life expectancy and infectious diseases: Infectious diseases are leading cause of death worldwide through vaccination* + sanitation) Females have higher life expectancy (83) than males (79) Other causes of death include war: russia has world"s highest rate of smoking/alcoholism, leads to a high rate of cardiovascular disease. Pathogen: body kills pathogen you stay healthy, pathogen kills you, upon exposure, you transmit the pathogen to someone else.
