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Glossary of staph and strep

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distinguish staph and strep wrt catalase reaction
staph are catalase positive
strep are catalase negative
distinguish staph and strep wrt morphology
staph grow in clusters
strep grow in strips
groups of strep wrt hemolytic capacity
alpha hemolytic strep PARTIALLY lyse RBCS
beta hemolytic strep completely lyse RBCs
gamma hemolytic strep are non-hemolytic
alpha hemolytic strep
PARTIALLY lyse RBCS, leaving a greenish area of discoloration on a bld agar plate - green area tcontains unlysed RBCs and a hemoglobin metabolite
beta hemolytic strep
completely lyse RBCs, leaving a clear zone of hemolysis around the colony on a bld agar plate
gamma hemolytic strep
non-hemolytic
4 infections of grp A beta-hemolytic strep
streptococcal pharyngitis
streptococcal skin infections
scarlet fever
streptococcal TSS
lancefield antigens
antigens of the C carbohydrate found on bacterial cell wall - used to describe groups of Strep
5 important groups of Strep
Lancefield groups A, B, D
Strep pneumo
Viridans group of Strep
2 delayed antibody mediated diseases of Streptococcus
rheumatic fever
glomerulonephritis

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