Prevalence and antimicrobial resistance of salmonella isolated from been Khon Kaen municipality

Abstract

The objective of this study was to detect the prevalence and antimicrobial resistance of Salmonella isolated from beef in Khon Kaen municipality. Beef and cutting plate swabs were collected at fresh markets and roadside stalls during January-March 2009. Salmonella was identi ed following the ISO-6579: 2002 method. Contamination at the fresh markets was 66.7% on beef and 44.4% on cutting plates, but that at the roadside stalls was found only on beef (22.2%). The isolates from beef and cutting plates at fresh markets resistant to amoxicillin, gentamicin, sulfamethoxazole/ trimethoprim and tetracycline were 40%, 5%, 30% and 35%, respectively. All isolates from roadside stalls were sensitive to all antimicrobial agents. Prevention and control of any factors leading to Salmonella contamination in beef should be bene cial for the good health of consumers.