{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T13:26:19Z","timestamp":1777641979104,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2015,4,1]],"date-time":"2015-04-01T00:00:00Z","timestamp":1427846400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Foodborne Pathogens and Disease"],"published-print":{"date-parts":[[2015,4]]},"abstract":"\n Extended-spectrum \u03b2-lactamase (ESBL)\u2013producing\n Escherichia coli<\/jats:italic>\n have been frequently isolated from food-producing animals and pose a serious threat to human health. This study collected 195 ESBL-producing\n E. coli<\/jats:italic>\n isolates from 20 chicken farms and 3 live-bird markets located in Northeast China (Heilongjiang, Liaoning, Jilin) and Jiangsu province from February 2011 to October 2013. ESBL genes, including\n bla<\/jats:italic>\n CTX-M<\/jats:sub>\n ,\n bla<\/jats:italic>\n TEM<\/jats:sub>\n , and\n bla<\/jats:italic>\n SHV<\/jats:sub>\n , were detected and characterized, and the susceptibilities of these strains to various antimicrobial agents were determined. One hundred ninety-one of these isolates carried 1 or more\n bla<\/jats:italic>\n genes.\n bla<\/jats:italic>\n CTX-M<\/jats:sub>\n ,\n bla<\/jats:italic>\n TEM-1<\/jats:sub>\n , and\n bla<\/jats:italic>\n SHV-5<\/jats:sub>\n were identified in 183, 121, and 2 isolates, respectively. The most common\n bla<\/jats:italic>\n CTX-M<\/jats:sub>\n genes were\n bla<\/jats:italic>\n CTX-M-15<\/jats:sub>\n (68 strains),\n bla<\/jats:italic>\n CTX-M-65<\/jats:sub>\n (41 strains),\n bla<\/jats:italic>\n CTX-M-55<\/jats:sub>\n (35 strains),\n bla<\/jats:italic>\n CTX-M-14<\/jats:sub>\n (32 strains), followed by\n bla<\/jats:italic>\n CTX-M-3<\/jats:sub>\n ,\n bla<\/jats:italic>\n CTX-M-13<\/jats:sub>\n ,\n bla<\/jats:italic>\n CTX-M-79<\/jats:sub>\n , and\n bla<\/jats:italic>\n CTX-M-101<\/jats:sub>\n , as well as the chimeric genes\n bla<\/jats:italic>\n CTX-M-64<\/jats:sub>\n ,\n bla<\/jats:italic>\n CTX-M-123<\/jats:sub>\n , and\n bla<\/jats:italic>\n CTX-M-132<\/jats:sub>\n . Fifteen strains (7.7%) co-harboring CTX-M-1 group and CTX-M-9 group genes were detected in 195 ESBL-producing strains. Pulsed-field gel electrophoresis of 45 strains showed that these CTX-M-producing isolates belonged to 34 different types. To our knowledge, this is the first study to report the\n bla<\/jats:italic>\n SHV-5<\/jats:sub>\n gene in\n E. coli<\/jats:italic>\n isolated from chickens in China. Conjugation experiments demonstrated that the\n bla<\/jats:italic>\n CTX-M<\/jats:sub>\n and\n bla<\/jats:italic>\n TEM<\/jats:sub>\n genes could be transferred to\n E. coli<\/jats:italic>\n strain J53, while conjugative transfer of the\n bla<\/jats:italic>\n SHV-5<\/jats:sub>\n gene from two isolates was not detectable.\n bla<\/jats:italic>\n CTX-M<\/jats:sub>\n genes are carried by many kinds of transferable and untypable plasmids. Our findings demonstrate that the CTX-M enzymes are predominant in both type and quantity.\n <\/jats:p>","DOI":"10.1089\/fpd.2014.1857","type":"journal-article","created":{"date-parts":[[2015,3,18]],"date-time":"2015-03-18T17:39:49Z","timestamp":1426700389000},"page":"345-352","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":34,"title":["Characterization of Antimicrobial Resistance and Extended-Spectrum\n \u03b2<\/i>\n -Lactamase Genes in\n Escherichia coli<\/i>\n Isolated from Chickens"],"prefix":"10.1177","volume":"12","author":[{"given":"Panpan","family":"Tong","sequence":"first","affiliation":[{"name":"Jilin University","place":["China"]},{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yang","family":"Sun","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xue","family":"Ji","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoli","family":"Du","sequence":"additional","affiliation":[{"name":"National Institute for Communicable Disease Control and Prevention","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuejun","family":"Guo","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingwei","family":"Zhu","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Zhou","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Zhou","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guo","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuzhang","family":"Feng","sequence":"additional","affiliation":[{"name":"Jilin University","place":["China"]},{"name":"Institute of Military Veterinary","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2015,4,1]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mimet.2005.03.018"},{"key":"e_1_3_3_3_1","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.66.10.4555-4558.2000"},{"key":"e_1_3_3_4_1","volume-title":"Performance Standards for Antimicrobial Susceptibility Testing; Twenty-Third Informational Supplement","author":"[CLSI] Clinical and Laboratory Standards Institute","year":"2013","unstructured":"[CLSI] Clinical and Laboratory Standards Institute. Performance Standards for Antimicrobial Susceptibility Testing; Twenty-Third Informational Supplement. Document M02-A11, M07-A9, and M11-A8. 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Prevalence and characteristics of extended-spectrum \u03b2-lactamase and plasmid-mediated fluoroquinolone resistance genes in Escherichia coli isolated from chickens in Anhui province, China. 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