Study on antibiotic resitance of E. coli isolated from chicken meat and pork in Soc Son district, Ha Noi City

Abstract

In this study, 100 meat samples (50 chicken meat and 50 pork samples) were randomly collected at the local markets in Soc Son district, Ha Noi City to isolate and research on antibiotic resistance of E.coli. The studied results showed that the prevalence of E. coli in the chicken meat and pork samples was 73%, of which, 70% (35/50) of chicken meat samples and 76% (38/50) of pork samples were positive
with E. coli. All isolates were resistant with 1 to 12 antibiotics. The isolates exhibited highest resistance rate to florfenicol (86.3%), followed by ampicillin and tetracycline (83.56%), streptomycin (68.49%), nalidixic acid (63.01%), trimethoprim/sulfamethoxazole (56.16%); the isolates showed the low resitance rate to azithromycin (8.57%), ceftazidime (10.96%), cefoxitin (15.07%), cefepime (16.44%), cefotaxime (17.81%). Notably, 84.93% of E. coli isolates were multi-resitant strains. There were 16.44% of E. coli
isolates produced ESBL with 7 strains from chicken meat samples and 5 strains from pork samples.