Streptococcus pyogenesis a toxigenic bacterium causing a variety of diseases. Which of the following statements best characterizes this organism?
It secretes erythrogenic toxin
that causes the characteristic signs of scarlet fever
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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