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Nosocomial infections caused by community-associated methicillin-resistant Staphylococcus aureus in Colombia

2009; Elsevier BV; Volume: 38; Issue: 4 Linguagem: Inglês

10.1016/j.ajic.2009.05.013

1527-3296

Carlos Álvarez, Nancy Yomayusa, Aura Lucía Leal, Jaime Moreno, Sebastián Méndez-Álvarez, Milcíades Ibáñez‐Pinilla, Natasha Vanegas,

Bacterial Identification and Susceptibility Testing

Background Community-associated methicillin-resistant Staphylococcus aureus strains (CA-MRSA) have emerged as the causative agent of health care-associated infections. Methods An observational and prospective study was carried out in 5 hospitals in Bogotá, Colombia; severe MRSA infections were identified, and their origin led to classification as health care-associated (HA-MRSA), community-associated, or nosocomial infections. MRSA isolates were analyzed by SCCmec, pulsed-field gel electrophoresis, multilocus sequence typing, and virulence factors. Results Twenty-six (10.4%) CA-MRSA nosocomial infection-causing strains (eg, USA300) were detected in 250 MRSA infection isolates in mainly primary bacteremia and surgical site infections. The mortality related to nosocomial infection by CA-MRSA was 27%. Conclusion The presence of nosocomial infection by CA-MRSA in Colombia was confirmed. Community-associated methicillin-resistant Staphylococcus aureus strains (CA-MRSA) have emerged as the causative agent of health care-associated infections. An observational and prospective study was carried out in 5 hospitals in Bogotá, Colombia; severe MRSA infections were identified, and their origin led to classification as health care-associated (HA-MRSA), community-associated, or nosocomial infections. MRSA isolates were analyzed by SCCmec, pulsed-field gel electrophoresis, multilocus sequence typing, and virulence factors. Twenty-six (10.4%) CA-MRSA nosocomial infection-causing strains (eg, USA300) were detected in 250 MRSA infection isolates in mainly primary bacteremia and surgical site infections. The mortality related to nosocomial infection by CA-MRSA was 27%. The presence of nosocomial infection by CA-MRSA in Colombia was confirmed.