医疗机构水源性感染研究进展

Research progress on waterborne infection in medical institutions

摘要:

医疗供水系统可能成为水源性感染病原体的贮存场所,受污染的医疗用水常导致医院感染及暴发事件,给医院感染的预防与控制带来挑战。一些水源性病原体,如铜绿假单胞菌、军团菌、非结核分枝杆菌、不动杆菌、嗜麦芽窄食单胞菌等常通过供水系统繁殖与传播,供水系统的水温、余氯浓度及生物膜是关键影响因素。现对近年来医疗机构水源性感染的现状、供水系统特点及影响因素,以及国内外相关水源性感染事件进行综述,以期为医疗机构水源性感染防控带来新的启示。

Abstract:

Hospital water supply system may serve as a reservoir of waterborne pathogens, and contaminated water can lead to the occurrence and outbreak of healthcare-associated infection (HAI), which bring great challenge to the prevention and control of HAI. Waterborne pathogens, such as Pseudomonas aeruginosa, Legionella, no-tuberculous Mycobacterium, Acinetobacter, and Stenotrophomonas maltophilia, often propagate and spread through the water supply system. Water temperature, residual chlorine concentration, and biofilm in water supply system are key influencing factors. This article reviews the current situation of waterborne infection, characteristics and influencing factors of water supply system in medical institutions in recent years, as well as related waterborne infection events at home and abroad, so as to bring new insights for the prevention and control of waterborne infection in medical institutions.