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8 Cards in this Set
- Front
- Back
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Streptococcus agalactiae
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Group B Streptococcus
G+ve Spherical/oval chains >4cells Pathogen in neonates (very young infant) Catalase -ve Resists Bacitracin Heamolytic |
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Streptococcus pyogenes
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G +ve paired or chained cocci
Complete haemolysis on horse blood Sensitive to Bacitracin Group A Streptococcus Causes suppurative (pus discharge) diseases such as pharyingitis, otitis media, Abscesses, meningitis + Infections of uterus |
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Viridans group Streptococci
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Gram +ve cocci chains
Alpha heamolytic on horse blood. Shows greening of agar. Optochin resistant Alpha heamolytic Abundent in mouth, cause of dental caries, gingivitis and endocarditis. |
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Group A
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Bactitracin sensitive.
Beta heamolytic eg. Strep pyogenes |
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Group B
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CAMP +ve
Alpha/beta heamolytic eg. Strep agalactiae |
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Group C
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eg. Strep aysgalactiae
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Group D
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aesculin posative
non heamolytic eg Strep faecalis |
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Streptococcus pheumoniae
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G+ diplococci, encapsulated
Sensitive to opochin Culture from blood is diagnostic of disease Common in throat. Pathogenesis often coinsides with viral infection Alpha heamolytic |
