Evaluation of Interhospital Spread of Methicillin-Resistant Staphylococcus aureus in Sao Paulo, Brazil, Using Pulsed-Field Gel Electrophoresis of Chromosomal DNA

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Abstract
The widespread dissemination of a single clone of methicillinresistant Staphylococcus aureus (MRSA) in several hospitals in Sao Paulo could make the intrahospital epidemiologic evaluation of MRSA outbreaks very difficult. The high index of PPD reactivity among our healthcare workers (HCWs) obligates us to develop programs suitable to the prevailing conditions of Latin American hospitals to control TB inside healthcare facilities.