废水源中的多药耐药E. Coli:一项比较研究和对耐药性热点的识别
Reham R Abdelgalel1,2, Reham Ali Ibrahem3, Doaa Safwat Mohamed2
1Department of Microbiology and Immunology, Faculty of Pharmacy, Minia University, Minia, Egypt.
BMC microbiology
|August 12, 2025
概括
大肠杆菌的抗生素耐药性在废水中普遍存在,医院来源显示的比社区更高的比率. 污水处理可能无法完全清除耐药细菌,因此需要持续监测废水质量.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生 公共卫生
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 废水作为抗生素耐药细菌的储存库.
- 大肠杆菌是监测耐药性模式的关键指标细菌.
- 了解医院,社区和处理厂废水中的耐药性对公共卫生至关重要.
研究的目的:
- 调查来自各种废水源的大肠杆菌的抗生素耐药性模式.
- 确定生产β-乳糖酶和引起腹的大肠杆菌的遗传学类型和流行率.
- 为了比较医院,社区和废水处理厂环境之间的抵抗水平.
主要方法:
- 使用Kirby-Bauer盘扩散与11种抗生素进行抗生素敏感性测试.
- 常规PCR用于检测β-lactamase基因,家族遗传类型和腹致病菌株.
- 分析来自医院,社区和废水处理厂样本的大肠杆菌分离物.
主要成果:
- 从废水中回收的92种大肠杆菌菌株中有66.3%的菌株表现出耐药性.
- 医院的废水表现出更高的抗性 (75%) 比社区的废水 (50%).
- 多抗药性大肠杆菌菌株很常见 (42.6%),经常检测到特定的β-乳糖酶基因 (blaTEM,blaOXA-48).
结论:
- 社区的废水可能有助于抗生素耐药性的传播.
- 污水处理厂可能无法完全消除耐药的大肠杆菌.
- 持续监测废水废水对于控制抗菌素耐药性的传播至关重要.
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