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Related Flashcards
Related Topics
Cards In This Set
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Pathology
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The study of disease
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Etiology
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The study of the cause of disease (koch's postulates)
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Pathogenesis
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The development of disease
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Infection
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Colonization of the body of pathogens
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Disease
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An abnormal state in which the body is not functioning normally.
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Transient Microbiota
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Present for days, weeks, or months
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Normal Microbiota
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Permemantly colonize the host (recurrent sinus infections)
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Symbiosis
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The relationship between normal microbiota and the host (living together)
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Commensalism
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One organism benefits and the other is unaffected (our predominant relationship with bacteria)
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Mutualism
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Both organisms benefit (rhyzobium)
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Parasitism
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One organism benefits are the expense of the other (college roommate)
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Microbial anatagonism
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Competition between microbes to take over
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Probiotics
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Live microbes applied to or ingested into the body, intended to exert a beneficial affect (danon)
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Koch's Postulates
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- The same pathogen must be present in every case of the disease
- The pathogen must be isolated from the disease host and grown in pure culture
- The pathogen from the pure culture must cause the disease when it is inoculated into a healthy susceptible lab animal
- The pathogen must be isolated from the inoculated animal and must be shown to be the original animal
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Contagious Disease
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A disease that is spread from one host to another (take vaccines by law for communicable disease)
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