01 Gm positive cocci

Staph Aureus

A staph: Protein A binds Fc portion of IgG.

Egyptian nose: Colonizes nares.

Staph Epidermis and Sapro

Strep Pyogenes

aka GAS.

S pyogenes are catalase-negative, β-hemolytic, gram-positive cocci in chains. S pyogenes is unique among β-hemolytic streptococci as it is susceptible to bacitracin. Because the bacitracin test is not very specific for S pyogenes, it has been replaced in many laboratories by the pyrrolidonyl arylamidase (PYR) test; S pyogenes is PYR-positive.

(erythrogenic toxin)

Rheumatic Fever

Jones criteria

PSGN

RF Vs PSGN

Group B Strep

aka strep agalactiae.

Strep pneumo and viridans

Strep pneumo

Adult M, children G:

Strep viridans

Enterococcus

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