The possible role of circumcision in newborn outbreaks of community-associated methicillin-resistant Staphylococcus aureus.

Outbreaks of community-associated methicillin-resistant Staphylococcus aureus were recently reported in newborns at 3 major urban centers. Boys were disproportionately infected. A literature review and a statistical analysis confirmed that male newborns are significantly more likely to be infected with Staphylococcus aureus. Circumcision is a possible explanation for the recent outbreaks.