Microbial burden on environmental surfaces in long-term care facilities: a quantitative analysis.

IF 3 4区医学 Q2 INFECTIOUS DISEASES Infection Control and Hospital Epidemiology Pub Date : 2024-10-31 DOI:10.1017/ice.2024.129

William A Rutala, Lauren M DiBiase, Amy W Powell, Maria F Gergen, Emily E Sickbert-Bennett, Hajime Kanamori, David J Weber

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Abstract

Background: We conducted a quantitative analysis of the microbial burden and prevalence of epidemiologically important pathogens (EIP) found on long-term care facilities (LTCF) environmental surfaces.

Methods: Microbiological samples were collected using Rodac plates (25cm2/plate) from resident rooms and common areas in five LTCFs. EIP were defined as MRSA, VRE, C. difficile and multidrug-resistant (MDR) Gram-negative rods (GNRs).

Results: Rooms of residents with reported colonization had much greater EIP counts per Rodac (8.32 CFU, 95% CI 8.05, 8.60) than rooms of non-colonized residents (0.78 CFU, 95% CI 0.70, 0.86). Sixty-five percent of the resident rooms and 50% of the common areas were positive for at least one EIP. If a resident was labeled by the facility as colonized with an EIP, we only found that EIP in 30% of the rooms. MRSA was the most common EIP recovered, followed by C. difficile and MDR-GNR.

Discussion: We found frequent environmental contamination with EIP in LTCFs. Colonization status of a resident was a strong predictor of higher levels of EIP being recovered from his/her room.

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长期护理机构环境表面的微生物负担：定量分析。

背景：我们对长期护理设施（LTCF）环境表面的微生物负担和流行病学重要病原体（EIP）进行了量化分析：我们对长期护理设施（LTCF）环境表面的微生物负担和流行病学重要病原体（EIP）的流行率进行了定量分析：使用 Rodac 平板（25 厘米2/平板）从五家长期护理机构的居民房间和公共区域收集微生物样本。EIP定义为MRSA、VRE、艰难梭菌和耐多药（MDR）革兰氏阴性杆菌（GNRs）：据报告，定植了菌落的居民房间的每罗达克 EIP 计数（8.32 CFU，95% CI 8.05，8.60）远高于未定植菌落的居民房间（0.78 CFU，95% CI 0.70，0.86）。65%的居民房间和 50%的公共区域至少有一种 EIP 呈阳性。如果某位居民被医疗机构标记为定植了一种 EIP，我们仅在 30% 的房间中发现了该 EIP。MRSA 是最常见的 EIP，其次是艰难梭菌和 MDR-GNR：讨论：我们发现，长者护理中心的环境经常受到 EIP 污染。住户的菌落状态是其房间内 EIP 感染率较高的一个重要预测因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infection Control and Hospital Epidemiology 医学-传染病学

CiteScore

6.40

自引率

6.70%

发文量

289

审稿时长

3-8 weeks

期刊介绍： Infection Control and Hospital Epidemiology provides original, peer-reviewed scientific articles for anyone involved with an infection control or epidemiology program in a hospital or healthcare facility. Written by infection control practitioners and epidemiologists and guided by an editorial board composed of the nation''s leaders in the field, ICHE provides a critical forum for this vital information.