کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4366634 | 1616583 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prevalence and characteristics of Shiga toxin-producing Escherichia coli isolated from retail raw meats in China
ترجمه فارسی عنوان
شیوع و ویژگی اشریشیا کولی، تولید کننده سم شیگ، جدا از گوشت خرده نان خرده نان در چین
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
چکیده انگلیسی
Shiga toxin-producing Escherichia coli (STEC) causes diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome in humans. Most human infections are attributed to consumption of STEC-contaminated foodstuffs of animal origin. In this study, we evaluated the prevalence of STEC from retail raw meats collected from two geographical regions in China. The results revealed that 166 out of 853 samples were stx-positive; 63 STEC isolates were recovered from 58 stx-positive samples including pork (4.4%, 14/318), beef (11.0%, 21/191), mutton (20.6%, 26/126), chicken (0.5%, 1/205), and duck (7.7%, 1/13). Twenty-six O serogroups and 33 O:H serotypes were identified. All three stx1 subtypes and five stx2 subtypes (2a to 2e) were found in the 63 STEC isolates, among which stx2e-positive STEC isolates were the most predominant (39.7%), followed by stx1c only (20.6%), stx1c + stx2b (14.3%), and stx1a only (9.5%). STEC isolates carried virulence genes eae (6.3%), ehxA (36.5%), katP (4.8%), astA (11.1%), and subA (36.5%). Of the four adherence-associated genes tested, toxB was absent, whereas saa, paa, and efa1 were present in 28, three, and one STEC isolates respectively. The STEC isolates were divided into 50 PFGE patterns and 33 sequence types. STEC from different sources and geographical regions were separated by PFGE and MLST. Our results revealed that there is a high genetic diversity of STEC in retail raw meats, some of which have potential to cause human diseases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Food Microbiology - Volume 200, 4 May 2015, Pages 31-38
Journal: International Journal of Food Microbiology - Volume 200, 4 May 2015, Pages 31-38
نویسندگان
Xiangning Bai, Hong Wang, Youquan Xin, Rongjie Wei, Xinyuan Tang, Ailan Zhao, Hui Sun, Wang Zhang, Yan Wang, Yanmei Xu, Zhengdong Zhang, Qun Li, Jianguo Xu, Yanwen Xiong,