Abstract
We tested 259 methicillin-resistant Staphylococcus aureus isolates and 2 USA300 ATCC type strains for susceptibility to bacitracin and neomycin contained in over-the-counter antibacterial ointments. Resistance to both bacitracin and neomycin was found only in USA300. The use of over-the counter antimicrobial drugs may select for the USA300 clone.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Anti-Bacterial Agents / administration & dosage
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Anti-Bacterial Agents / pharmacology*
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Bacitracin / pharmacology
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Humans
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Methicillin-Resistant Staphylococcus aureus / drug effects*
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Methicillin-Resistant Staphylococcus aureus / genetics
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Methicillin-Resistant Staphylococcus aureus / isolation & purification
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Microbial Sensitivity Tests
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Neomycin / pharmacology
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Nonprescription Drugs / administration & dosage
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Nonprescription Drugs / pharmacology*
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Ointments
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Polymyxin B / pharmacology
Substances
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Anti-Bacterial Agents
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Nonprescription Drugs
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Ointments
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Bacitracin
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Neomycin
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Polymyxin B