Streptococcus Flashcards
Streptococcus test differentiates?
Streptococcus and Enterococcus orgns
Streptococcus Test ?
. Bile esculin
- BHI + 6.5% NaCl
- SXT Susceptibility
- Bacitracin Susceptibility
- CAMP
- Hemolysis
Bile esculin Test Contents
Bile: inhibits G(+) except group D and enterococci
Bile esculin indicator
Ferric Citrate
Bile Esculin test end product
esculetin
Bile Esculin test (+) result?
dark brown organism
Bile Esculin test (-) result?
no change
BHI + 6.5% NaCl Test media?
brain heart infusion + 6.5% sodium chloride
identifies Enterococci
BHI + 6.5% NaCl Test indicator?
none
BHI + 6.5% NaCl Test end product?
na
BHI + 6.5% NaCl Test (+) result?
(+) enterococcus = turbidity
BHI + 6.5% NaCl Test (-) result?
(-) no turbidity = no growth
CAMP test distinguishes
beta-hemolytic
species Streptococcus agalactiae from other
species of beta-hemolytic Streptococcus
CAMP Contents?
blood agar
CAMP enzymes?
hemolysins
streptomycin
Camp factor
