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November 2014

Uncovering Reservoirs of Methicillin-Resistant Staphylococcus aureus: Children Contaminating Households or Households Contaminating Children?

Author Affiliations
  • 1Division of Pediatric Infectious Diseases, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
  • 2Department of Hospital Epidemiology and Infection Control, Johns Hopkins Hospital, Baltimore, Maryland
  • 3Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
JAMA Pediatr. 2014;168(11):994-995. doi:10.1001/jamapediatrics.2014.1260

Methicillin-resistant Staphylococcus aureus (MRSA) emerged in the late 1980s and is a leading cause of skin and soft-tissue infections (SSTIs) in the United States.1 Unlike hospital-associated MRSA strains, community-associated MRSA strains, commonly designated USA300 by use of pulsed-field gel electrophoresis, initially were found in children without health care exposure. These strains of community-associated MRSA now cause infections in community and hospital settings.2 Recent data from the Centers for Disease Control and Prevention showed that the number of cases of invasive community-associated MRSA infection increased among children between 2005 and 2010.3 Noninvasive MRSA infections far outnumber invasive MRSA infections among children and can lead to a significant economic burden.

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