Is Streptococcus sensitive to bacitracin?: A Guide to Differentiation
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5 min read
Over 95% of *Streptococcus pyogenes* strains are sensitive to bacitracin, a differential characteristic used for decades in microbiology. Answering the question, *is Streptococcus sensitive to bacitracin?*, thus depends heavily on the specific bacterial species and its Lancefield grouping. The bacitracin disk test, a common laboratory procedure, is used for this critical differentiation.
