Antibiotic susceptibility and molecular characterization of resistance genes among Escherichia coli and among Salmonella subsp. in chicken food chains

Objective To investigate the occurrence of resistance genes among Escherichia coli (E. coli) and Salmonella subsp. isolated in chicken food chains in Phnom Penh, 2012–2013. Methods Six hundred eighty two E. coli and 181 Salmonella Albany, Corvallis, and Kentucky strains were examined for susceptibilities to eight antimicrobials and following resistance genes were identified by PCR: bla