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27 Cards in this Set
- Front
- Back
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The decrease or loss of virulence
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attenuation
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The presence of microorganism in the blood
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bacteremia
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A dense, well‑defined polysaccharide or protein layer closely surrounding a cell
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capsule
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The multiplication of a pathogen after it has gained access to host tissues
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colonization
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Tooth decay resulting from bacterial infection
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dental caries
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Bacterial cells encased in a matrix of extracellular polymers and salivary products, found on the teeth
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dental plaque
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Injury to the host that impairs host function
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disease
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The lipopolysaccharide portion of the cell envelope of certain gram‑negative Bacteria, which is a toxin when solubilized
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endotoxin
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A protein released extracellularly by a microorganism as it grows that produces immediate damage to the small intestine of the host
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enterotoxin
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A protein released extracellularly by a microorganism as it grows that produces immediate host cell damage
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exotoxin
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A bacterial toxin capable of hemolysis, the lysis of red blood cells
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hemolysin
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An organism that harbors a parasite
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host
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The growth of organisms in the host
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infection
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Pathogenicity caused by the ability of a pathogen to enter the body and spread
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invasiveness
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The trachea, bronchi, and lungs
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lower respiratory tract
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Layers of epithelial cells that interact with the external environment
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mucous membrane
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Soluble glycoproteins secreted by epithelial cells that coat the mucous membranes
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mucus
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Microorganisms that are usually found associated with healthy body tissue
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normal microbial flora
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An infection contracted in a hospital or health‑care setting
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nosocomial infection
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An organism that causes disease in the absence of normal host resistance
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opportunistic pathogen
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An organism that grows in or on a host and causes disease
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parasite
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An organism, usually a microorganism, that causes disease
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pathogen
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The ability of a pathogen to cause disease
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pathogenicity
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A diffuse deposit of polymer fibers, typically polysaccharides, that forms an outer surface layer on the cell
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slime layer
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Pathogenicity caused by toxins produced by a pathogen
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toxicity
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The nasopharynx, oral cavity, and throat
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upper respiratory tract
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The degree of pathogenicity displayed by a pathogen
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virulence
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