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15 Cards in this Set
- Front
- Back
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V. cholerae has a better colonization efficiency in individuals of which blood group?
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better colonization efficiency in blood group O individuals, more sensitive than A, B, or AB Blood types (seem to cover up some receptors that bacteria likes to bind to
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Where is the "P Pilli" found and what does it do?
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"pyelonephritis pili" found on UTI causing e. Coli
the host receptor is α-D galactopyranosyl-(1-4)-β-D-galactopyranoside moiety found in glycolipids of urinary epithelial cells |
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Major parts of P Pillus
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papA = major subunit anchored to Outer Membrane
PapG = protein on top of PapA that interacts with ADHESIN (host cell sugar) |
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how does M. TB successfully infect host?
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taken up by Macrophage
subverts phagosome pathway between early and late phagosome (Rab 7 is not recruited) |
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adherence
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process by which bacteria stick to host surfaces
adhesion = initial step in infection |
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carrier
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person or animal with asymptomatic infection or colonization that can be transmitted to another susceptible person or animal
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infection
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multiplication of an infectious agent within the body
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invasion
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the process by which the pathogen enters host cells or tissues and spread to other sites in the body
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nonpathogen
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a microorganism that does not cause disease, may be part of the normal flora (e.g. lactococcus)
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opportunistic pathogen
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an infectious agent capable of causing disease only when host resistance is impaired (e.g. Staph aureus and Pseudomonis aeruginosa, and fungi)
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Pathogen
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microorganism capable of causing disease
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pathogenicity
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the ability of an infectious agent to cause disease
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pathogenesis
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the process by which an infectious agent causes disease
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toxigenicity
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the ability of a microorganism to produce a toxin that contributes to the dvpt of disease
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virulence
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the overall ability of an agent to cause disease, virulence involves adherence, invasion and toxigenicity
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