Bacitracin Discs [Pack of 50]

Bacitracin Discs are used in the presumptive identification of group A β-hemolytic streptococci and allow for their differentiation from other β-hemolytic streptococci. A zone of inhibition greater than or equal to 14mm indicates susceptibility to bacitracin and is presumptive of group A streptococci.

Sterile filter paper discs (50 pcs, diameter 6 mm) impregnated with 0.04 Units of Bacitracin.