Aislamiento y estudio fenotípico de Staphylococcus aureus meticilino resistente (SARM) a partir de alimentos que se expenden en el Mercado Mayorista de la ciudad de Loja

Abstract

Abstract: Staphylococcus aureus is the main pathogenic species of its genus responsible for causing various infections in humans at the community and hospital level. The presence of Staphylococcus aureus, microbial resistance and MRSA were evaluated from 90 food samples sold in the Wholesale market of the City of Loja. These samples were diluted in sterile buffered water, plated on Baird Parker agar plates (BBL DIFCO) and incubated at 37 ° C for 48 hours. S. aureus was identified in 18% (16/90) of food, with colony counts from <10 to 1.28 x 103 CFU / g of food. 1.1% (1/16) was positive for MRSA and around 18.75% (3/16) of the isolates were resistant to at least one antimicrobial compound, while 6.25% (1/16) were resistant to multiple drugs. The results reflect poor hygiene practices in food preparation, which merits effective control and development of food preparation. Additionally, it is important to control the susceptibility to S. aureus and MRSA antimicrobials.