Antibiotic Resistance Profiles and Virulence Markers of Escherichia coli Strains Isolated from Diarrheal Lambs in Gansu and Qinghai, China

文献类型： 外文期刊

第一作者： Tuo, Xin

作者： Tuo, Xin;Wang, Shengyi;Cui, Dongan;Wang, Fuhe;Liu, Yongming;Wang, Hui;Wang, Hongsheng

作者机构：

关键词： Antimicrobial resistance; Escherichia coli; Lamb diarrhea; Virulence genes

期刊名称：PAKISTAN VETERINARY JOURNAL （ 影响因子：1.318； 五年影响因子：0.954 ）

ISSN： 0253-8318

年卷期： 2020 年 40 卷 1 期

页码：

收录情况： SCI

摘要： The current research was done to verify the prevalence, the antimicrobial resistant strains and virulence profiles of Escherichia coli in sheep of western China In total 167 lambs diarrhea samples were collected from Gansu and Qinghai province, China, during 2014-2017. A total of 103 E. coli isolates were subjected to verify their antimicrobial susceptibility and virulence genes. The data showed that the percentage of E. coli isolates was 61.68%. The main resistances were obtained for penicillin (97.09%), lincomycin (95.15%) and erythromycin (69.90%). The most common antimicrobial resistance gene was tetA (83.50%), tetB (68.93%), blaTEM (63.11%), blaSHV (56.31%) and aac (3)-I (78.64%). Overall, the frequently virulence genes were mdh, ipaH, eae and six1 . The most frequent combined virulence patterns were ipaH-eae (38.83%), ipaH-stx1 (37.86%), eae-stx1 (33.98%), ipaH-astA (23.30%), astA-eae (21.36%) and ipaH-eae-stx1 (26.21%). These results demonstrated pathogenic E. coli are widely distributed in sheep of western China and carrying various antimicrobial resistance genes and virulence genes. (C) 2019 PVJ. All rights reserved

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