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Define Microbiology
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The study of micro-organisms
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Nonpathogenic
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Harmless organisms that may be beneficial
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pathogenic
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Causing or able to cause disease
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communicable disease
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a disease that is spread from one organism to another
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Bacilli
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Rod shaped bacteria, most common bacteria
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Spirilla
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spiral, coil shaped bacteria
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Staphylococci
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Pus-forming bacteria that grow in clusters like a bunch of grapes. They cause abscesses, pustules, and boils.
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Diplococci
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Spherical bacteria that grow in pairs and cause diseases such as pneumonia. "Di" = two
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Active stage
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bacteria grow and reproduce
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External parasites
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Organisms that live on or obtain nutrients from another organism
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General infection
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Occurs when the circulatory system carries bacteria and their toxins to all parts of the body
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Local infection
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pathogens are limited to a small area of the body (boils and abscesses)
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active immunity
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A form of acquired immunity in which the body produces its own antibodies against disease-causing antigens
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passive immunity
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the short-term immunity that results from the introduction of antibodies
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Universal Precautions
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actions taken to prevent the spread of disease by treating ALL blood and other body fluids as if they contained pathogens
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