Groups based on carbohydrate composition of bacterial antigens in cell wall
Group A: Streptococcus pyogenes - causative agent behind 90% of strep infections
, Streptococcal Pharyngitis - Answers a group A disease characterized by fever, enlargement of lymph
nodes in the neck and a reddening within the lining of the throat surface tissue causing soreness and
discomfort
Streptococcal Septicemia - Answers Group B Streptococcus infection of the blood
fever, increased heart rate, arises from infections in lungs, abdomen, urinary tract
treatment: antibiotics, IV fluids, oxygen
can be caused by E. coli, pseudomonas, klebsiella, etc
Staphylococcus - Answers Gram-positive
Round shape, forms grape-like clusters with other bacteria
facultative anaerobe
can be found in 30% of human population asymptomatic
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