Salud Pública de México (Feb 2020)

Tracking methicillin-resistant Staphylococcus aureus clones in a hospital in Southern Mexico

  • Miguel Ángel Ortíz-Gil,
  • Maria Elena Velazquez-Meza,
  • Gabriela Echániz-Aviles,
  • Javier Paul Mora-Domínguez,
  • María Noemi Carnalla-Barajas,
  • Elsa Lilia Mendiola del Moral

DOI
https://doi.org/10.21149/10786
Journal volume & issue
Vol. 62, no. 2, Mar-Abr
pp. 186 – 191

Abstract

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Objective. To describe the clinical and molecular charac­teristics of methicillin-resistant Staphylococcus aureus (MRSA) strains that were collected in the Hospital Regional de Alta Especialidad de Veracruz (HRV). Materials and methods. A total of 107 MRSA strains from individual patients were examined. The strains were collected between September 2009 and September 2010. The clinical and demographic characteristics of patients were analyzed; molecular typing by pulsed-field gel electrophoresis (PFGE), staphylococcal chromosomal cassette mec (SCCmec) typing and multilocus sequence typing were used to characterize the isolates. Re­sults. Two PFGE patterns (NY/J and IB) were identified with 4 and 3 subtypes respectively. The isolates analyzed showed two SCCmec types (I and II) and two sequence types (ST): ST247 and ST5 related with the Iberian and New York/Japan clones respectively. Conclusion. This study establishes the presence of two very important clonal lineages of MRSA: New York/Japan and Iberian clone in the hospital environment.

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