在德国的住宅用水样本中发现的非结核性菌根菌的全球血统
Margo Diricks1,2, Denia Frank3, Inna Friesen4
1Molecular and Experimental Mycobacteriology, Research Center Borstel, Parkallee 1, Borstel, 23845, Germany. mdiricks@fz-borstel.de.
BMC microbiology
|December 6, 2025
概括
室内水系统拥有非结核菌 (NTM),包括全球相关的克隆,如Mycobacterium abscessus DCC3. 这一发现强调了需要公共卫生策略来降低感染风险的必要性,特别是在弱势群体中.
科学领域:
- 环境微生物学环境微生物学
- 传染病 传染病 传染病
- 基因组学就是基因组学.
背景情况:
- 非结核性真菌菌 (NTM) 是广泛存在的环境细菌,在免疫功能低下的个体中引起感染.
- 了解NTM环境储存和传播对于公共卫生至关重要,因为感染率不断上升.
研究的目的:
- 调查室内水系统中NTM的流行率和遗传多样性.
- 确定环境和临床NTM分离物之间的潜在流行病学联系.
- 使用全基因组测序和药物敏感性测试来描述NTM.
主要方法:
- 来自家庭和医院的室内水样本的分析.
- 全基因组测序 (WGS) 用于NTM表征.
- 核心基因组多位置序列类型化 (cgMLST) 用于全球血统比较.
主要成果:
- 在22.0%的家庭和14.7%的水样中检测到NTM.
- 已确定8种NTM物种,包括1种新物种.
- 在水中发现的全球分布的Mycobacterium abscessus,Mycobacterium chimaera和Mycobacterium chelonae的血统,在淋浴水中发现的M. abscessus DCC3.
结论:
- 室内水系统作为临床意义上的NTM的水库.
- 基因相关的环境和临床NTM隔离物表明潜在的传播途径.
- 研究结果支持针对性的公共卫生干预措施,以尽量减少暴露风险,特别是对弱势群体.
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