micro recap - doctor 2018 - ju medicine...gradual fever, turns into weakness and constipation, ......
TRANSCRIPT
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Micro Recap
Various chapters
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Oxidase = these bugs are treated as strict AEROBES Oxidase: an enzyme used for oxidation reduction (cytochrome C, its presence means that the bacteia uses oxygen as a strict electron acceptor and thus is a strict anaerobe (much like psudomonas)
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Gram-Negative Rods Related to the Respiratory Tract
• H. influenzae and B. pertussis are found only in humans, whereas L. pneumophila is found primarily in environmental water sources.
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NON–SPORE-FORMING GRAM-POSITIVE RODS • There are two important pathogens in this group:
• 1 Corynebacterium diphtheriae
• 2 Listeria monocytogenes
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Diarrhea with blood
Gradual fever, turns into weakness and constipation, then green colored diarrhea with complications
Notice lactose fermenters are causative of UTI Proteus a non lactose fermenter also causes UTI,
it is characterized by high motility
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HUS
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Typhoid
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VIBRIO • V. cholerae cause of cholera.
• Vibrio parahaemolyticus causes diarrhea associated with eating raw or improperly cooked seafood. Vibrio vulnificus cellulitis and sepsis.
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• The major human pathogens in this family are : Mycobacterium tuberculosis, the cause of tuberculosis, and Mycobacterium leprae, the cause of leprosy.
• Atypical mycobacteria, such as Mycobacterium avium-intracellulare complex and Mycobacterium kansasii, can cause tuberculosis-like disease but are less frequent pathogens.
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