MRSA Typing in health care workers from intensive care units of a Hospital Institution

Tipificación SARM en trabajadores asistenciales de las unidades de cuidados intensivos en una institución hospitalaria.

Objective.  To  characterize   microbiologically   MRSA in health care workers of the Intensive Care Units at a hospital institution in the city of Montería. Materials and methods. A longitudinal descriptive study was carried out in 52 workers from two intensive care units; nasal and pharyngeal swabs were taken from each individual, with a periodicity of 15 days / five months. Examined through microbiological methods such as fermentation of mannitol, catalase and coagulase the identification of S. aureus was performed, with the  cefoxitin  disc  by Kirby-Bauer disc-diffusion method the methicillin resistance mediated by the mecA gene was evaluated; antibiotics such as Vancomycin, Erythromycin and Clindamycin were evaluated by this test and confirmed by MicroScan ®. Results. we obtained 88 isolates of Staphylococcus aureus and  21  MRSA,  a  prevalence  of MRSA of 25%. 90.5% of strains Of SARM were recovered from the pharynx, in a greater proportion (50%) in nursing staff. Conclusions. Evidence of MRSA circulation in care staff within a hospital institution generates an alert that allows it to establish containment policies to avoid the dissemination of these strains  and to avoid the appearance of outbreaks or hospital infections associated with this pathogen.