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11 Cards in this Set
- Front
- Back
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Streptococcus ECM toxin
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Streptokinase = fibrinolysin
Streptodornase = Hydrolyze DNA Hyaluronidase = spreading factor Pyogenic exotoxin = superantigen Hemolysin: Streptolysin O = oxygen labile, antigen ASO titer = disease course S = oxygen stable, non antigen |
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Streptococcus Virulence
No strep has following: Catalase, oxidase, motility, spores |
C-substance = resist phag
M Protein = breaks C3 convertase, Rheumatogenic Protein F = Fibronectin binding Lipoteichoic acid = adherence |
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Streptococcus Pyogenes
Beta hemolytic Lancefield Group A |
Pharyngitis, Pyoderma (impetigo)
Scarlet fever = Erythrogenic toxin Erysipelas = vesicular eruptions Necrotizing Fasciitis Toxic Shock = Bacteremia Rheumatic fever = M type autoimm Glomerulonephritis = IC deposition |
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Streptococcus Pheumoniae
Alpha hemolytic Diplococcal |
Virulence: Capsule, Pneumolysin O
Optochin inhibits Bile salt soluble Quellung reaction for strains Cause: Pneumonia, Meningitis, AOM |
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Enterococcus Faecalis
Lancefield Group D Grows in high salt & bile Antibiotic resistant |
Endogenous infection
UTI & intravasc catheter Wound infection Treat: Aminoglycoside + cell wall VRE = vanco resist, transferrable |
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Streptococcus Agalactiae
Lancefield Group B Beta hemolytic |
Infant = Meningitis
Adult = UTI Common = Bacteremia, Pneumonia ID = hydrolyze hippurate, +cAMP Narrow beta hemolysis |
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Streptococcus Viridans
Alpha hemolytic |
Infect damaged valves
Oral flora |
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Neisseria Gonorrhoeae
G- Intracellular diplococci Non hemolytic = chocolate agar Thayer-Martin selective media = Vanco, Colistin, Nystatin Oxidase and Catalase positive Aerobic, likes high CO2 |
No exotoxins
Pili for attachment Outer Membrane Protein = invasion Por Proteins = Prevent phagolysosome fusion, attach/invade, protect from Ab LOS = lipid A (gives symptoms) IgA protease Beta lactamase |
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Neisseria Meningitidis
(meningococcus) Thayer-Martin or Chocolate agar G- diplococci |
Type 4 pili = breach meninges
Meningococcemia: Septicemia and petechiae/purpura May have meningitis Meningococcal meningitis: Stiff neck, nausea, vomit, headache High mortality Gram stain CSF, culture blood Capsule B and C most virulent |
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Moraxella Catarrhalis
G- diplococci Beta lactamase |
Lung infection
Otitis media |
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Kingella Kingae
Oxidase positive G- diplococci/coccobacillus Fastidious |
Oral flora
Bone, joint, tendon infection Introduced by toothbrushing |
