کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11033398 | 1616497 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-levels of resistance to quinolone and cephalosporin antibiotics in MDR-ACSSuT Salmonella enterica serovar Enteritidis mainly isolated from patients and foods in Shanghai, China
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, 2887 Salmonella strains were mainly obtained from patients and foods in Shanghai from 2006 to 2014 in order to assess the susceptibility to 16 antibiotics. Among them, 3.8% (110/2887) S. Enteritidis isolates were shown to have an ACSSuT (ampicillin, chloramphenicol, streptomycin, sulfamethoxazole, and tetracycline) resistance pattern. The resistance genes of ACSSuT included sul2 (74.55%), flo (67.27%), tetA (49.09%), and aph(3)-IIa (46.36%). In addition, class 1 integron profiles were detected in 9 isolates, and 55.6% (5/9) were shown to carry resistant genes against aminoglycosides and sulfonamides. Moreover, these isolates had a high rate of resistance to nalidixic acid (95.29%), cefotaxime (70.64%), cefepime (58.72%), and ceftazidime (48.62%). Detection of quinolone genes showed that 93.64% (103/110) of the strains had gyrA single mutations (D87G, D87Y, D87N, S83Y, and S83F), where D87G was the dominant mutation in 55.45% isolates. 19.1% (21/110) isolates carried plasmid-mediated quinolone resistance (PMQR) genes (qnrB and aac(6â²)-Ib-cr), and the most prevalent was qnrB. Furthermore, we also detected ESBLS genes. The most common were blaCTX-M-55 (57.27%) followed by blaTEM (23.6%) and blaOXY (4.55%). Mart, prot6E, steB, fimA, and sopE2 genes (100%) were the most in these isolates. The strains in the dominant PFGE profiles of G1 were all co-resistant to quinolones, cephalosporins, and ACSSuT, and were isolated from different sources. This suggests that existence of these genes lead to the emergence of high-levels of resistance to quinolone and cephalosporin in these ACSSuT resistance pattern isolates. And these isolates are transmitted between humans and food.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Food Microbiology - Volume 286, 2 December 2018, Pages 190-196
Journal: International Journal of Food Microbiology - Volume 286, 2 December 2018, Pages 190-196
نویسندگان
Yeben Ma, Miao Li, Xuebin Xu, Ying Fu, Zhiying Xiong, Lina Zhang, Xiaoyun Qu, Hongxia Zhang, Yihuan Wei, Zeqiang Zhan, Zhengquan Chen, Jie Bai, Ming Liao, Jianmin Zhang,