In a school, a child had abscess on lower leg. Swab taken revealed gram positive beta-hemolytic streptococci, and these were bacitracin sensitive. School physician observed that similar organism was isolated from throats of many other children. Which of the following is true statement with regards to this patient -

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Depending on M protein, the cutaneous pathogenic bacteria can be differentiated from the pharyngeal culture bacteria

Answer

Difference in surface protein can differentiate the pathogenic bacteria from the pharyngeal culture bacteria.

Answer

Component C carbohydrate can differentiate the pathogenic bacteria from the throat culture bacteria.

Answer

MEG 3 positive are throat culture streptococci.

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