在厄瓜多尔屠宰的猪中的沙门氏菌:流行率,血清型,基因型和抗生素耐药性
M Cevallos-Almeida1, C Gómez1, B Cajas1
1Laboratory of Bacteriology and Mycology. Faculty of Veterinary Medicine and Zootechnics. Central University of Ecuador 170521 Quito, Ecuador.
Veterinary and animal science
|December 16, 2025
概括
沙门氏菌在厄瓜多尔猪中很常见,在15.3%的样本中发现. 大多数耐药菌株表现出对四环素和链杆菌素的耐药性,构成公共卫生风险.
科学领域:
- 通过食物传播的病原体
- 兽医微生物学 兽医微生物学
- 公共卫生 公共卫生
背景情况:
- 沙门氏菌 (Salmonella enterica,S. enterica) 是一种主要的全球性食源性病原体,其中猪肉是传播的重要来源.
- 关于厄瓜多尔猪中S. enterica流行情况的数据有限.
- 了解猪肉供应链中的S. enterica对于评估公共卫生风险至关重要.
研究的目的:
- 为了确定在厄瓜多尔基托的一个屠宰场的猪中S. enterica的流行情况.
- 描述S. enterica分离的血清型,基因型和抗菌耐药性概况.
- 提供厄瓜多尔猪肉行业S. enterica流行病学的基线数据.
主要方法:
- 在培养基上检测沙门氏菌spp. 来自眼膜内容 (CCs) 和中腔淋巴结 (MLNs).
- 使用ISO 6579-3的血清型,通过磁盘扩散进行抗菌敏感性测试,并通过XbaI PFGE进行基因型鉴定.
- 在消化过程中采样了365头猪.
主要成果:
- 在15.3%的猪中检测到S. enterica (56/365),在CC或MLN中发现,但不是两者.
- 确定了12种血清型,其中单相沙门氏菌Typhimurium (mST) 和乌干达S.占主导地位.
- 对四环环素 (71.4%) 和链杆菌素 (62.5%) 观察到高耐药率,确定了12种多药耐药性模式.
结论:
- 这是对厄瓜多尔大型屠宰场S. enterica流行率的首次研究.
- 这些发现强调了显著的抗菌素耐药性,特别是在mST和S. Infantis分离物中.
- 该研究为评估厄瓜多尔猪肉生产中与S. enterica相关的公共卫生风险提供了必要的数据.
关键词:
抗微生物耐药性 抗微生物耐药性现在的PFGE就是PFGE.猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪沙门氏菌是一种沙门氏菌.血清型 血清型 血清型屠宰场 屠宰场 是一个屠宰场.更多相关视频
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