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9 Cards in this Set
- Front
- Back
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What bacterial structure is responsible for acute phase cytokine induction (in gram neg and gram positive, respectively)?
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Gram Positive = Lipoteichoic acid
Gram Negative = Lipid A (LPS endotoxin component) |
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Which bacteria does not have a purely polysaccharide capsule?
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Bacillus anthracis
contains D-glutamate (the polyglutamic acid capsule, is one of its 2 virulence factors b/c it is anti-phagocytic) |
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What is the treatment for H. pylori?
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Triple Therapy:
1) PPI 2) Clarithromycin (macrolide) 3) Amoxicillin (ß-L) or Metronidazole |
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How does Strep Viridans cause vegetations on the valves?
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Converts Sucrose into Dextrans
Dextrans act like Fibrin and so when there is endothelial damage in the heart (@ the valves) and platelets adhere to damage, the dextrans bind the platelets like fibrin → vegetations |
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What is uniquely produced by Strep agalactiae?
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CAMP Factor
- enlarges area of hemolysis formbed by staph aureus |
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What kind of agar does Corynebacterium diphtheriae grow on? How do you test for its toxin?
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Tellurite agar (Telluride, CO)
Elek test = for toxin |
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What are the Tx's for the branching filament gram positive bacteria?
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Sulfa for Nocardia
PCN for Actinomyces "SNAP the branches" |
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What bugs cause dysentery and what are their 2 main methods?
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1) Invasion:
- Salmonella - EIEC 2) Toxin - EHEC - Shigella |
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What can a yersinia infection mimic?
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It causes Mesenteric Adenitis that mimics:
- Crohn's Dz - Appendicitis |
