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10 Cards in this Set
- Front
- Back
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Staph aureus ID
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Golden colony
Total hemolysis Mannitol DNase Coagulase High salt and temps CAT+ OX- |
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Colonization
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Adhesins - collagen
Fibronectin - bind clots and trauma |
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Invasins
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Kinase - lyse clots
Hyaluronidase - spreading factor |
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Antiphagocytic
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Capsule
Protein A - binds Fc of Ab Coagulase - Starts prothrombin clot Both the above disguise against immune defenses |
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Pore toxins
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Alpha toxin - poration of cells
Hemolysin Leukotoxin |
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Exotoxin
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TSST
ET (exfoliatin) - blisters and epidermis loss SE - vommit and diarrhea |
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Resistance
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B-lactamase
Penicillin binding protein 2a = resistance to all penicillin and cephalosporins |
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Toxigenic disease
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Toxic shock syndrome:
TSST-1 = fever, diffuse macular red rash Desquamation Scalded Skin syndrome: Bullae and desquamation Young children, erythema |
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Staph food poison
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Exotoxic enterotoxin
High salt and sugar foods mayonnaise, meat, pastry Heat stable toxin Not fatal |
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Staph epidermidis
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Catheter infection
Biofilms Endocarditis of artificial valve |
