1.

A five year old child presents with pustular lesions on the lower legs.The culture from the lesion showed hemolytic gram positive coccii.Provisional diagnosis of Group A streptococcal pyoderma can be done by:

A. Bile solubility
B. Bacitracin sensitivity
C. Catalase positivity
D. Optochicin sensitivity
Answer» C. Catalase positivity


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