A newborn has a temperature of 39.2°C (103°F). Blood culture grows gram-positive Beta-hemolytic cocci in chains. This is most likely to be which of the following?
Group A Streptococus (Streptococcus pyogenes)
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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