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A total of 941 samples were collected from pigs and broiler chickens at slaughter houses and from carcasses at local fresh markets in Sa Kaeo, Thailand (<jats:italic>n<\/jats:italic>\u2009=\u2009554) and Banteay Meanchey, Cambodia (<jats:italic>n<\/jats:italic>\u2009=\u2009387) in 2014 and 2015. From these samples, 345 <jats:italic>Salmonella<\/jats:italic> isolates were collected from Sa Keao (<jats:italic>n<\/jats:italic>\u2009=\u2009145; 23%) and Banteay Meanchey (<jats:italic>n<\/jats:italic>\u2009=\u2009200; 47%) and assayed for antimicrobial susceptibility, class 1 integrons and extended\u2010spectrum \u03b2\u2010lactamase (ESBL) genes. Serovars Typhimurium (29%) and Rissen (29%) were the most common serotypes found in Thai and Cambodian isolates, respectively. Multidrug resistance was detected in 34% and 52% of isolates from Sa Keao and Banteay Meanchey, respectively. The majority of the Thai isolates were resistant to ampicillin (72.4%), whereas most Cambodian isolates were resistant to sulfamethoxazole (71%). Eleven isolates from Sa Keao and 44 from Banteay Meanchey carried class 1 integrons comprising resistance gene cassettes. The most common gene cassette array was <jats:italic>dfrA12<\/jats:italic>\u2010<jats:italic>aadA2<\/jats:italic> (61.1%). Six isolates were ESBL producers. The \u03b2\u2010lactamase genes found included <jats:italic>bla<\/jats:italic><jats:sub>TEM\u20101<\/jats:sub>, <jats:italic>bla<\/jats:italic><jats:sub>CTX\u2010M\u201055<\/jats:sub> and <jats:italic>bla<\/jats:italic><jats:sub>CMY\u20102<\/jats:sub>. Some of these class 1 integrons and ESBL genes were located on conjugative plasmid. In conclusion, multidrug\u2010resistant <jats:italic>Salmonella<\/jats:italic> are common in pigs, chickens and their products in the Thailand\u2013Cambodia border provinces. Our findings indicate that class 1 integrons play a role in spread of AMR in the strains in this study.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1348-0421.12462","type":"journal-article","created":{"date-parts":[[2017,1,2]],"date-time":"2017-01-02T09:32:41Z","timestamp":1483349561000},"page":"23-33","source":"Crossref","is-referenced-by-count":98,"title":["Prevalence and antimicrobial resistance in <i>Salmonella enterica<\/i> isolated from broiler chickens, pigs and meat products in Thailand\u2013Cambodia border provinces"],"prefix":"10.1111","volume":"61","author":[{"given":"Suthathip","family":"Trongjit","sequence":"first","affiliation":[{"name":"Research Unit in Microbial Food Safety and Antimicrobial Resistance Department of Veterinary Public Health Faculty of Veterinary Science Chulalongkorn University Bangkok 10330"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sunpetch","family":"Angkititrakul","sequence":"additional","affiliation":[{"name":"Research Group for Prevention Technology in Livestock Faculty of Veterinary Medicine Khon Kaen University Khon Khan 40000 Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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