Occurrence, Antimicrobial Resistance and Molecular Diversity of in Processed Pork Meat Products in Korea.

Because is an important nosocomial pathogen and sentinel organism for tracking antimicrobial resistance, information on the contamination and antimicrobial resistance patterns of in food are essential to public health and food safety. We analyzed the occurrence of in retail pork meat products ( = 124), and antimicrobial resistance of 30 isolates were examined against 14 antimicrobials using the broth dilution test and disc diffusion test. Rep-PCR-based molecular diversity was also analyzed using Deviersilab. The highest contamination of enterococci was observed for minced pork meat but most of the was isolated from meatball-type frozen pork meat products (FP). Incidences of antimicrobial-resistant against erythromycin, clindamycin and nitrofurantoin were 80%, 50% and 20%, respectively. No vancomycin-resistant enterococci were analyzed. Rep-PCR showed distinctive clusters with a similarity ≥ 98%, consisting of 18 isolates from FP manufactured in seven companies. The analyzed data on the contamination and antimicrobial resistance patterns combined with molecular typing can be useful to derive risk management of antimicrobial-resistant enterococci in food.