Surveillance of Methicillin-Resistant Staphylococcus aureus in a Pediatric Hospital in Mexico City during a 7-Year Period (1997 to 2003): Clonal Evolution and Impact of Infection Control

Abstract

Between 1997 and 2000 a single multidrug-susceptible methicillin-resistant Staphylococcus aureus clone, M (sequence type 30 [ST30]-staphylococcal cassette chromosome mec [SCCmec] type IV), was present in a pediatric hospital in Mexico City, Mexico. In 2001 the international multidrug-resistant New York-Japan clone (ST5-SCCmec type II) was introduced into the hospital, completely replacing clone M by 2002.