Characterization, estimation of virulence and drug resistance of diarrheagenic escherichia coli (DEC) isolated from Tibetan pigs

被引：3
作者：
Cao, Zhipeng [1 ]
Qi, Ming [1 ]
Shang, Peng [1 ]
Zhang, Hui [2 ]
Nawaz, Shah [3 ]
Ghaffar, Abdul [4 ]
Wu, Qingxia [1 ]
Dong, Hailong [1 ]
机构：
[1] Tibet Agr & Anim Husb Univ, Anim Sci Coll, Linzhi 860000, Peoples R China
[2] South China Agr Univ, Coll Vet Med, Guangzhou 510642, Peoples R China
[3] Univ Agr Faisalabad, Fac Vet Sci, Dept Anat, Faisalabad 38000, Pakistan
[4] Islamia Univ Bahawalpur, Fac Chem & Biol Sci, Dept Zool, Bahawalpur 63100, Pakistan
来源：
MICROBIAL PATHOGENESIS | 2023年 / 177卷
关键词：
Tibetan pig; Escherichia coli; Virulence; Drug resistance; HIGH-ALTITUDE ADAPTATION; ANTIMICROBIAL RESISTANCE; POSTWEANING DIARRHEA; PREVALENCE; PIGLETS; GENES; SEROGROUPS; DIVERSITY; BACTERIAL; PROVINCE;
D O I：
10.1016/j.micpath.2023.106046
中图分类号：
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号：
100102 ;
摘要：
In this study, we collected feces of Tibetan piglets from Nyingchi area for isolation, culture, identification, virulence gene analysis and drug resistance analysis of Escherichia Coli. The results demonstrated a 41.3% isolation rate of Diarrheagenic Escherichia Coli from Tibetan pigs with the main phylogenetic groups: group A (68.6%) and group B2 (15.7%). Typical E.coli accounted for 76.5%. The highest detection rates of porcine virulence genes were E.coli heat-resistant enterotoxin STb (58.82%) and F107 fimbrial subunit (23.53%). The highest detection rates of virulence genes from Tibetan pigs were fimC (80.39%) and ompA (76.47%). A drug sensitivity test showed that Diarrheagenic Escherichia Coli from Tibetan pigs had high drug resistance rates to mezlocillin, doxycycline and gentamicin. This study comprehensively analyzed the species composition, virulence and drug resistance of Diarrheagenic Escherichia Coli from Tibetan pigs, which provided a clearer and more targeted idea for the prevention and treatment of yellow and white dysentery in Tibetan pigs in the future.
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页数：9
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