评估从马桶冲洗中感染Clostridioides difficile的风险:定量微生物风险评估和对感染控制的影响
E N Paddy1, M Sohail1, O O D Afolabi1
1School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough, Leicestershire, UK.
The Journal of hospital infection
|March 2, 2025
概括
马桶冲洗会使Clostridioides difficile (CDI) 产生气溶液,在医疗机构中造成严重的感染风险. 目前的做法和所设计需要审查,以减轻通过所羽毛生物气溶的传播.
科学领域:
- 环境微生物学 环境微生物学
- 传染病流行病学 传染病流行病学
- 公共卫生 公共卫生
背景情况:
- 尽管控制了感染,但Clostridioides difficile感染 (CDI) 在医疗保健中仍然存在.
- 所烟雾生物气溶是CDI的一个被忽视的传播载体.
研究的目的:
- 通过马桶冲洗量化CDI传播的风险.
- 在医疗保健机构中制定CDI预防策略.
主要方法:
- 冲击采样用于量化空中C. difficile后冲洗.
- 擦拭高接触面以进行污染评估.
- 量化微生物风险评估 (QMRA) 用于估计用户风险.
主要成果:
- 一次冲洗就会释放出C. difficile生物气溶 (高达29.50 cfu/m3).
- 细菌在冲洗后的所表面持续存在,增加的湿度提高了生存能力.
- 冲水按接触和吸入-摄入路径构成最高风险,超过安全门.
结论:
- 医疗卫生卫生间的设计,政策和设施管理需要审查,以减轻CDI传播.
- 结果支持开发基于证据的干预措施,以控制感染的行为和基础设施变化.
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