Abstract
We report 16 bacitracin-resistant Streptococcus pyogenes isolates recovered from pharyngitis patients in Belgium, 14 of which belonged to a particular emm type (emm28). All 16 isolates were constitutively resistant to macrolides and carried erm(B). The emergence of a bacitracin-resistant S. pyogenes clone raises questions about the continued reliability of bacitracin susceptibility testing for S. pyogenes identification.
MeSH terms
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Anti-Bacterial Agents / pharmacology*
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Bacitracin / pharmacology*
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Belgium
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DNA Primers
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Drug Resistance, Bacterial*
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Electrophoresis, Gel, Pulsed-Field / methods
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Humans
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Pharyngitis / microbiology*
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Polymerase Chain Reaction / methods
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Streptococcal Infections / diagnosis*
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Streptococcus pyogenes / drug effects*
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Streptococcus pyogenes / isolation & purification
Substances
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Anti-Bacterial Agents
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DNA Primers
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Bacitracin