Which of the virulence factors are characterized of S.pyogenes?
C.
hyaluronidase
E. pyrogenic
exotoxin
G.
streptolysins
Vibrio genus involves many species, only some serotypes of V.cholerae are pathogens of cholera. Which of the following causative agents of cholera?
V.cholerae serogroups non O1 and non O139
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