Monitoring and Analysis of Drug Resistance of Yersinia in Fresh Meat

Objective To monitor the drug resistance status of yersinia isolates from fresh meat, grasp the drug resistance spectrum and trend of Yersinia isolates in Our province, and provide important reference data for guiding the rational application of antibiotics in human clinical practice and controlling the spread of drug resistant strains. Methods A total of 600 pieces of fresh pork, beef and chicken were collected from several farmers' markets and supermarkets in Changchun every month for 15 months from August 18th to October 19th. 80 strains of Yersinia strains were detected, and MIC concentrations of drug resistance were detected by microbroth dilution with 15 antibiotic sensitive plates. Results 80 strains of Yersinia strains were counted. The total drug resistance rate of Yersinia pestis was 98.8%, and cefazolin (CFZ) had the highest drug resistance rate of 92.5.% (74/80). Erythromycin (ERY) was followed by 58.8% (47/80). Ampicillin (AMP) 57.5% (46/80); Naproxil acid (NAL) and cefoxitin (CFX) were 28.8 (23/80) and were somewhat resistant to other antibiotics. But all strains were sensitive to imipenem (IMP) and gentamicin (GEN). There were 28 strains with multiple drug resistance, accounting for 35.4% (28/79). Conclusion There are multiple antibiotic resistance in Yersinia strains in this monitoring, and the multiple drug resistance is serious and the resistance spectrum is diverse. In order to ensure food safety and human health, great attention should be paid to and enhanced drug resistance monitoring of Yersinia.