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9 Cards in this Set
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- Back
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Causes gray pseudomembranes on the back of the throat.
Respiratory transmission. Targets the heart and brain |
Corynebacterium Diptheriae
Catalase + Dx: K Tellurite agar (black coonies 24 hrs)+ Loefflers coagulated blood serum media (12hrs). "TELL yoUR InTErn not to LOAF around" Exotoxin: A - blocks protein synthesis EF2 (anti human ribosomal) B - Entry into heart/neurons Tx:Antitoxin + Penn/Erythromycin Prophylaxis: DPT vaccine |
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This cause of late onset neonatal sepsis is a falcutative intracellular parasite that spreads from cell to cell via actin rockets.
Transmission via contaminated dairy products or vaginal. Neonatal meningitis (3rd) Meningitis (immunocompromised) Sepsis |
Listeria Monocytogenes
Catalase +, Beta hemolytic Has endotoxin (Lipid A - LPS). Motile. Tropism for nervous tissue. hides out in macrophages. Immune competent hosts can activate their macs and destroy organism. Tx: Ampicillin, TMP-SMX |
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Organisms have a Chinese letter configuration
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Corynebacterium Diptheriae
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Grows at cold temps (2.5 degrees C) thus can isolate from mixed flora.
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Listeria Monocytogenese
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End over End, tumbling motility
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Listeria Monocytogenes
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Elek Test
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Test for C. Diptheria.
Sterile filter paper impregnated with diptheria antitoxin imbedded in augar culture medium. Streak with diptheria. lines of ppt form where toxin meets antitoxin. |
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ADP-E2F Exotoxin
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C. Diptheria
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As the dominant organism of normal vaginal flora, its metabolism helps maintain the low pH of the vagina
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Lactobacillus
Produces lactic acid (lowers pH)which inhibits growth of harmful bacteria. Also found in Yogurt - L.Acidopholis |
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Elek Test
Corynebacterium Diptheria |
What is this test and what does it detect?
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