Study on antibiotic resistance of Salmonella isolated from chicken meat and pork sold at retail markets in Long Bien district area, Ha Noi City

Abstract

Salmonella is one of the bacteria commonly causes food poisoning. The objective of this study was to determine the antibiotic situation of Salmonella isolated from chicken meat and pork collecting at Long Bien district, Ha Noi City. The studied results showed that 86/180 (47.8%) chicken meat
and pork samples were positive with Salmonella. The contamination rate of chicken meat and pork samples with Salmonella was 54.4% and 41.1%, respectively. The isolated Salmonella was highly resistant to tetracycline (93.02%), sulfamethoxazole/trimethoprim (88.37%), erythromycin (83.72%), chloramphenicol (81.40%). In contrast, the resistance rate of isolates was low with ceftazidime (8.14%), ciprofloxacin (15.12%), cefotaxime (18.60%), gentamycin (30.23%), and enrofloxacin (33.72%). Notably, all isolates were resistant to at least one antibiotic, and 96.51% of the isolates were classified as multidrug-resistance. 50% of the isolates were resistant to 8 - 11 antibiotics;
8.14% of the isolates were resistant to 1-3 antibiotics.