Crystal violet blood agar is used for which bacteria-?

Crystal violet blood agar is used for
which bacteria?
a) Corynebacterium diphtheriae
b) Staph aureus
c) β-hemolytic streptococcus
d) Meningococcus
Correct Answer - C
β-hemolytic streptococcus
Crystal violet blood agar is a selective medium for isolation of p-
hemolytic group-A streptococcus.
o Crystal violet permits the growth of streptococcus but inhibits
growth of other gram positive bacteria (including
staphylococcus)