Microbiology Chapter 26 Answers – Flashcards
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| Staphyloccocus aureus (All) |
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| Mucopeptide Coagulase |
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| S. aureus |
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| CASEMELT (Capsule, Protein A, Staphylokinase, Enterotoxins, Membrane damaging toxins, Epidermolytic toxin, Leukocidin, Toxic Shock toxin) |
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| S. aureus (skin) |
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| 1) Exfoliation toxin: destroys intercellular connections 2) TSST1 superantigen: Systemic shock |
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| Streptococcus pyogenes |
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| 1) M and T proteins: inhibit opsonization 2) Lipoteichoic acid and F protein: bind to epithelium 3) Hyaluronidase: helps organism spread 4) Pyrogenic exotoxin: SUPERTOXIN 5) SPEA, B, C: cause rash of scarlet fever Pyrogenic |
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| Clostridium tetani |
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| 1) Tetanospasm (neurotoxin) |
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| Clostridium perfringens |
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| 1) Numerous toxins: impairs blood supply and maintains anaerobic conditions 2) Tissue-destroying enzymes |
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| Mycobacterium leprae |
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| 1) Intracellular 2) Slow development that leads to chronic immune reaction |
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| Candida (dimorphic fungus) |
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| 1) Invasion: all major organisms when disseminated |
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| Sporothrix schenckii (dimorphic fungus) |
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| 1) Ulcerations or abscess formation in the lymphatics |
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| Blastomyces dermatitides (dimorphic fungus) |
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| 1) Fungal infection in lungs: may be confused with TB 2) Abscesses |
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| Coccidioides immitis (dimorphic fungus) |
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| 1) Southwest USA, Mexico, S. America |
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| Leishmania (fungal) |
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| 1) Flagella 2) Intracellular (within macrophages) 3) Localized cutaneous ulcers 4) Invasion of mucosal tissues in nose and mouth |
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| Schistosome (blood flukes) |
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| 1) Lay eggs in the tissues 2) Cause granulomas |
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| Necator americanus (helminth) Ancylostoma duodenale (helminth) |
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| 1) Blood sucking intestinal parasites |
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| Poxvirus |
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| 1) Virus-rich vesicles on the skin make it easy to transfer |
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| Herpes Simplex 1 + 2 |
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| 1) Latency period in basal ganglia with reactivation 2) Intracellular travel (axonal travel) |
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| VZV |
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| 1) Latency period in basal ganglia with reactivation 2) Intracellular travel (axonal travel) |
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| HHV-6 + 7 |
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| 1) Live in T-cells and avoid immune system |
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| HHV-8 |
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| 1) Infects endothelial cells in Kaposi's sarcoma |
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| B19 |
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| 1) Infects hemopoietic cells in the bone marrow 2) Grows in mitotically active cells |
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| Rubella |
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| 1) Mononuclear cells are infected |
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| Trypanosoma cruzi (fungi) |
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| 1) Flagellates |
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| Taenia solium (Helminth) (Tapeworms) |
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| 1) Suckers and hooks 2) Proglottids (egg segments that are passed in the feces) |
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| Echinococcus granulosus |
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| 1) Cyst fluid causes anaphylaxis |
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| Trichinella spiralis (Roundworm: Helminth) |
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| 1) Causes diarrhea that helps spread the eggs |
