在一个全规模饮用水处理厂中,抗菌素耐药性的流行程度
Qihui Gu1, Tao Lin2, Xianhu Wei1
1Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, 510070, PR China.
Journal of environmental management
|June 18, 2023
概括
在饮用水处理厂中发现了抗生素耐药性基因,其中抗菌素,多种药物和硫胺耐药性最为丰富. 葡萄球菌物种是主要的耐药细菌,突出了先进的净化水的需要.
科学领域:
- 环境微生物学环境微生物学
- 水质研究 水质研究
- 公共卫生科学 公共卫生科学
背景情况:
- 饮用水中的抗生素耐药性是一个日益严重的公共卫生问题.
- 了解饮用水处理厂 (DWTP) 中抗生素耐药性基因 (ARG) 的流行率和类型对于风险评估至关重要.
研究的目的:
- 通过使用元基因组学,全面调查DWTP中ARG的发生,丰度和宿主.
- 为了确定主导的ARG携带细菌,并评估它们的抗生素耐药性概况.
主要方法:
- 超基因组测序和生物信息学分析以检测和量化ARG.
- 鉴定和表征ARG载体结合体和元基因组组装基因组 (MAG).
- 培养技术和对细菌分离物的抗微生物敏感性测试.
主要成果:
- 在15种类型中检测到381种ARG亚型,其中抗菌素,多种药物和硫胺耐药性最为丰富.
- 153个携带ARG的结合体与病原体有关,而葡萄球菌是最常见的宿主 (7.9%),经常携带多种药物ARG (43.2%).
- 种植过程中发现了Staphylococcus spp. 作为主要的分离物,其中大多数呈现多药性耐药性 (MDR).
结论:
- 该研究提供了DWTP中ARG和抗生素耐药细菌 (ARB) 的详细概况.
- 这些发现强调了与饮用水中的ARG相关的潜在健康风险.
- 显然需要改进的净水技术来缓解ARG的传播.
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