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Impact of the COVID-19 pandemic on alcohol-based hand rub consumption and hand hygiene compliance: a cross-sectional study using digital direct-observation tools in Slovakia COVID-19大流行对酒精洗手液消费和手部卫生合规的影响:在斯洛伐克使用数字直接观察工具进行的横断面研究
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-14 DOI: 10.1016/j.infpip.2025.100481
Chebenová Vanesa , Bučková Veronika , Škvarková Zuzana , Balintová Natália , Sokolová Jaroslava

Background

Hand hygiene (HH) among healthcare professionals (HCPs) is a key component in ensuring safe and high-quality healthcare. Monitoring the Five moments for HH according to World Health Organization (WHO) guidelines remains the gold standard for compliance assessment. Proper HH is the most effective measure to prevent healthcare-associated infections (HAI).

Aim

This cross-sectional study aimed to quantify HH compliance and alcohol-based hand rub (ABHR) consumption among HCPS at the University Hospital Trnava in Slovakia and to compare results between the pre-pandemic and post-pandemic periods.

Methods

HH compliance was monitored during the pre-pandemic period (2018–2019) and the post-pandemic period (2022–2023). Compliance was assessed among different groups of HCPs – physicians, nurses and other healthcare personnel (e.g., physiotherapists, orderlies and students). Monitoring was conducted using WHO methodology and recorded via the OBSERVE app.

Findings

During the pre-pandemic period, overall HH compliance was 50.2% (95% CI, 48.7.-51.8), with nurses demonstrating the highest compliance rate. In the post-pandemic period, HH compliance remained nearly unchanged at (50.8%; 95% CI, 48.9–52.7). ABHR consumption increased significantly during the COVID-19 pandemic, peaking at 48.4 litres/1 000 patient days (PD), but declined to 31.5 litres/1 000 PD by 2023.

Conclusion

The COVID-19 pandemic positively influenced ABHR consumption and raised awareness of the importance of HH in clinical practice. However, overall HH compliance did not improve post-pandemic. Direct observation supported by a digital application proved to be an effective method for collecting HH compliance data.
卫生保健专业人员(HCPs)的手部卫生(HH)是确保安全和高质量卫生保健的关键组成部分。根据世界卫生组织(世卫组织)准则监测健康的五个时刻仍然是合规评估的黄金标准。适当的卫生保健是预防卫生保健相关感染(HAI)的最有效措施。目的本横断面研究旨在量化斯洛伐克特尔纳瓦大学医院HCPS的HH依从性和酒精基洗手液(ABHR)消费量,并比较大流行前和大流行后时期的结果。方法在大流行前(2018-2019年)和大流行后(2022-2023年)监测shh的依从性。对不同组的HCPs——医生、护士和其他保健人员(如物理治疗师、护理员和学生)的依从性进行了评估。使用世卫组织方法进行监测,并通过OBSERVE应用程序进行记录。发现在大流行前,总体卫生保健依从率为50.2% (95% CI, 48.7 -51.8),护士的依从率最高。在大流行后时期,HH依从性几乎保持不变(50.8%;95% CI, 48.9-52.7)。在2019冠状病毒病大流行期间,ABHR消费量显著增加,峰值为48.4升/ 1000患者日(PD),但到2023年降至31.5升/ 1000患者日。结论新冠肺炎疫情对ABHR消费产生了积极影响,提高了人们对HH在临床中的重要性的认识。然而,大流行后,总体HH依从性并未改善。由数字应用程序支持的直接观察被证明是收集HH遵从性数据的有效方法。
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引用次数: 0
Understanding the landscape of carbapenemase-producing organisms (CPOs), and spotlighting opportunities for control in England 了解碳青霉烯酶产生生物(CPOs)的景观,并在英国重点控制的机会
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-12 DOI: 10.1016/j.infpip.2025.100480
Akaninyene Otu , Jacquelyn McCormick , Katherine L. Henderson , Alice Ledda , Danièle Meunier , Bharat Patel , Colin S. Brown , Susie Singleton , Emily L. Mason , Jasmin Islam , Ginny Moore , Katie L. Hopkins , Dakshika Jeyaratnam
Carbapenemase-producing organisms (CPOs) are an increasing global public health threat for which there are limited effective and affordable therapeutic options. The rise in the incidence of CPO infections and colonisations recorded across the UK and beyond over the last 20 years necessitates a need to review and update strategies for control. It is important to review other countries’ frameworks for CPO control and significant CPO outbreaks as these could inform the design of an efficient public health response. Despite many nations reacting to the rise by upscaling public health surveillance of CPOs (and the introduction of mandatory notification in England), improvements in laboratory detection methods, and the linkage of data across jurisdictions, significant challenges remain. For example, though predominantly acquired via cross-transmission between patients in healthcare, there are reports of human infections putatively acquired from CPOs harboured in the natural environment. Given the role of one-health in AMR, this is an important consideration. In this article, we outline some of the CPO control strategies adopted across different countries to give a sense of the global picture, and expand on why, in addition to controls in healthcare, there is a strong need to consider a One-Health approach. We describe the existing framework for CPO control in England and emphasise the importance of an integrated, multi-disciplinary and cross-sectoral strategy for dealing with the multifaceted problem posed by CPO in England.
碳青霉烯酶产生生物(CPOs)是一个日益严重的全球公共卫生威胁,目前有效和负担得起的治疗选择有限。在过去的20年里,英国和其他地区记录的CPO感染和殖民化的发病率上升,需要审查和更新控制策略。重要的是审查其他国家的小儿麻痹症控制框架和重大的小儿麻痹症暴发,因为这些可以为设计有效的公共卫生应对措施提供信息。尽管许多国家通过加强对慢性脊髓灰质炎的公共卫生监测(并在英格兰引入强制通知)、改进实验室检测方法以及跨司法管辖区的数据联系来应对这一上升,但仍存在重大挑战。例如,虽然主要是通过医疗保健患者之间的交叉传播获得的,但也有报告称,人类感染可能是通过自然环境中隐藏的CPOs获得的。鉴于单一健康在抗菌素耐药性中的作用,这是一个重要的考虑因素。在本文中,我们概述了不同国家采用的一些CPO控制策略,以了解全球情况,并详细说明除了医疗保健中的控制之外,为什么迫切需要考虑“单一健康”方法。我们描述了英国现有的CPO控制框架,并强调了处理英国CPO所带来的多方面问题的综合、多学科和跨部门战略的重要性。
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引用次数: 0
Impact of the acute national blood culture bottle shortage on the two-set blood culture rate in a single center in Japan: Insights from an interrupted time-series analysis 急性国家血培养瓶短缺对日本单一中心两套血培养率的影响:来自中断时间序列分析的见解
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-30 DOI: 10.1016/j.infpip.2025.100479
Tetsuji Morishita , Masao Kuwabara , Masayoshi Monji , Shin Lee , Makoto Hayashi , Hisashi Tsurumi , Hidetoshi Matsunami

Background

In 2024, a worldwide shortage of blood culture bottles prompted efforts to mitigate its impact, including strategies to reduce blood culture orders. This study aimed to evaluate the effect of the shortage on the two-set blood culture rate in a single center in Japan.

Methods

In this retrospective, single-center, observational study, blood culture data from April 2019 to January 2025 were analyzed. An interrupted time-series (ITS) analysis was performed to assess changes in the two-set blood culture rate, a key quality indicator. A Poisson segmented regression model was employed, with the shortage period as the breakpoint.

Results

The ITS analysis revealed a significant immediate reduction in the level of two-set blood cultures following the shortage (risk ratio [RR]: 0.22, P < 0.01), with a subsequent significant rise in the trend (RR: 1.25, P < 0.01). The two-set blood culture rate gradually improved after the supply restriction was lifted in October, returning to pre-shortage levels by December, following an intervention by the infection control team. The total blood culture test numbers remained stable during the study period (P = 0.64).

Conclusions

The blood culture bottle shortage led to a significant reduction in the two-set blood culture rate, demonstrating adaptation to shortage mitigation strategies. Monitoring the two-set blood culture rate served as an effective quality measure, enabling timely intervention by the infection control team and subsequent recovery of appropriate blood culture practices.The blood culture bottle shortage significantly reduced two-set blood culture rates. An interrupted time-series analysis showed an immediate drop, followed by recovery after an intervention. Monitoring enabled appropriate interventions to improve practices. Adapting strategies during shortages with continuous monitoring can optimize resources and patient care.
2024年,全球血液培养瓶短缺促使人们努力减轻其影响,包括采取减少血液培养订单的策略。本研究旨在评估短缺对日本单一中心两套血培养率的影响。方法对2019年4月至2025年1月的血培养数据进行回顾性、单中心、观察性研究。采用中断时间序列(ITS)分析来评估两组血培养率的变化,这是一个关键的质量指标。采用泊松分段回归模型,以短缺期为断点。结果ITS分析显示,短缺后两套血培养水平立即显著下降(风险比[RR]: 0.22, P <;0.01),随后趋势显著上升(RR: 1.25, P <;0.01)。在10月解除供应限制后,两套血培养率逐渐提高,在感染控制小组的干预下,到12月恢复到短缺前的水平。总血培养试验数在研究期间保持稳定(P = 0.64)。结论血培养瓶短缺导致两套血培养率显著降低,表明对短缺缓解策略的适应。监测两组血培养率是有效的质量措施,使感染控制小组能够及时干预,并随后恢复适当的血培养方法。血培养瓶短缺显著降低了两组血培养率。一项中断时间序列分析显示,该指标立即下降,随后在干预后恢复。监测有助于采取适当的干预措施来改进实践。在短缺期间通过持续监测调整策略可以优化资源和患者护理。
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引用次数: 0
Multi-pronged system strengthening approach to improving infection prevention and control practices in Tanzania 多管齐下的系统强化方法改善坦桑尼亚感染预防和控制做法
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-10 DOI: 10.1016/j.infpip.2025.100477
Doris Lutkam , Niranjan Konduri , Joseph C. Hokororo , Eliudi S. Eliakimu , Fozo Alombah , Stephano Simba , Cecilia Muiva , Ruth R. Ngowi , Radenta P. Bahegwa , Yohannes S. Msigwa , Dan Schwarz , Edgar Lusaya , Mohan P. Joshi
To ensure the effectiveness of its infection prevention and control (IPC) programs, Tanzania recognised a need to revise IPC guidelines and standards; upgrade IPC training materials to address knowledge gaps among preservice health care students and health workers; improve IPC governance and practice at the national and health facility levels; and improve monitoring of IPC program performance and surveillance of healthcare associated infections (HAIs). Overall, our work addressed 20 out of 21 IPC-related actions in the World Health Organisation Benchmarks for International Health Regulations capacities tool between 2018 and 2024. Over a one-year period, we found that the percentage of patients developing surgical site infections remained at 1% on average in the 10 intervention hospitals, which is lower than the global average of around 2.5%. The Ministry of Health subsequently scaled up HAI surveillance to 69 additional hospitals. As a result, Tanzania achieved a score of 3 (developed capacity) for HAI surveillance specifically in the Joint External Evaluation conducted in August 2023. Building on this progress, the Ministry of Health will continue to scale up IPC programs in all public and private health facilities. Given the health security risks associated with Ebola, Marburg, Mpox, and other pathogens, significant efforts are needed to educate the public on the importance of practicing IPC measures to protect themselves from infectious diseases.
为确保其感染预防和控制规划的有效性,坦桑尼亚认识到有必要修订感染预防和控制指南和标准;升级IPC培训材料,以解决职前卫生保健学生和卫生工作者之间的知识差距;改进国家和卫生机构一级的IPC治理和做法;改进对IPC项目绩效的监测和对医疗保健相关感染(HAIs)的监测。总体而言,我们的工作涉及2018年至2024年期间世界卫生组织《国际卫生条例基准》能力工具中与ipcc相关的21项行动中的20项。在一年的时间里,我们发现在10家干预医院中,发生手术部位感染的患者比例平均保持在1%,低于全球2.5%左右的平均水平。卫生部随后扩大了对另外69家医院的HAI监测。因此,在2023年8月进行的联合外部评估中,坦桑尼亚在HAI监测方面获得了3分(能力发达)。在这一进展的基础上,卫生部将继续在所有公共和私营卫生设施中扩大IPC规划。鉴于与埃博拉、马尔堡、Mpox和其他病原体相关的卫生安全风险,需要作出重大努力,教育公众了解实施IPC措施以保护自己免受传染病侵害的重要性。
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引用次数: 0
The role of vaccination and healthcare acquisition in respiratory failure during a COVID-19 outbreak in an acute hospital in Wales 在威尔士一家急性医院COVID-19爆发期间,疫苗接种和获得医疗保健在呼吸衰竭中的作用
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-09 DOI: 10.1016/j.infpip.2025.100474
Craig Hogg , Caoimhe McKerr , Noel Craine , Dafydd Williams , Malorie Perry , Simon Cottrell
This study provides descriptive analysis of a COVID-19 outbreak of 323 cases in a Welsh hospital in early 2021, with a focus on respiratory failure (RF) as a severe outcome. Multivariate analysis demonstrated decreased odds of RF in healthcare acquired cases (aOR 0.40 (95%CI 0.24–0.65), p<0.001) and individuals with at least one dose of vaccine 14 days before first positive test (aOR 0.45 (95%CI 0.28–0.75), p=0.002). In healthcare acquired cases, vaccination significantly reduced the odds of RF (OR 0.47 (95%CI 0.22-0.00), p=0.037). This analysis highlights the importance of vaccination as a protective factor against severe respiratory outcomes.
本研究对2021年初威尔士一家医院爆发的323例COVID-19病例进行了描述性分析,重点关注呼吸衰竭(RF)这一严重后果。多因素分析显示,医疗保健获得性病例(aOR 0.40 (95%CI 0.24-0.65), p<0.001)和在首次阳性检测前14天至少接种过一剂疫苗的个体(aOR 0.45 (95%CI 0.28-0.75), p=0.002)发生RF的几率降低。在医疗保健获得性病例中,接种疫苗显著降低了RF的几率(OR 0.47 (95%CI 0.22-0.00), p=0.037)。这一分析强调了疫苗接种作为预防严重呼吸道后果的保护因素的重要性。
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引用次数: 0
3% hydrogen peroxide to disinfect urine-contaminated surfaces 3%过氧化氢用于消毒被尿液污染的表面
IF 1.8 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-09 DOI: 10.1016/j.infpip.2025.100476
Brianna Tsuyuki , Dena Shahriari

Purpose

Disinfecting urine-contaminated floors, surfaces and objects is a persistent challenge in healthcare. While chlorine-based compounds such as bleach are often used to decontaminate surfaces, they are known to degrade plastics and may leave harmful residues and release potentially irritant vapors making them unsuitable disinfectants for materials that come in direct contact with humans. The objective of this study was to evaluate an alternative urine disinfection procedure. Treating urine-contaminated surfaces with 3% hydrogen peroxide (H2O2) was hypothesized to remove bacteria. Furthermore, when applicable, the efficacy of the same H2O2 stock solution for its repeated use over time was assessed further increasing simplicity and accessibility.

Materials and methods

The effectiveness of disinfecting two materials, a flat plastic surface and a long lumen representing a more challenging surface to clean, was evaluated with a commonly used method of water and soap versus using a 3% H2O2 solution.

Results

Contamination persisted when washing with soap and water but was effectively removed after one hour of H2O2 storage for flat plastic surfaces and after 3 hours for lumen surfaces. The same stock of H2O2 solution could be reused for up to three weeks with no colony formation.

Conclusions

The results show that bacteria can be removed from a urine-contaminated surface by being soaked in 3% H2O2 for one to three hours based on the surface type without the need for scrubbing or rinsing. The same stock solution can be used for repeated washes for up to three weeks to expand its sustainability and accessibility.
对被尿液污染的地板、表面和物体进行消毒是医疗保健领域的一个长期挑战。虽然漂白剂等氯基化合物通常用于表面消毒,但众所周知,它们会降解塑料,可能留下有害残留物,并释放出潜在的刺激性蒸汽,因此不适合用于与人类直接接触的材料的消毒剂。本研究的目的是评估一种替代的尿液消毒程序。假设用3%过氧化氢(H2O2)处理尿液污染的表面可以去除细菌。此外,在适用的情况下,评估了同一种H2O2原液在一段时间内重复使用的效果,进一步提高了简便性和可及性。材料和方法对两种材料(平面塑料表面和较难清洁的长管腔)的消毒效果进行了评估,使用的是常用的水和肥皂方法,而不是使用3% H2O2溶液。结果当用肥皂和水清洗时,污染仍然存在,但对于平坦的塑料表面,H2O2储存1小时后有效去除,对于管腔表面,H2O2储存3小时后有效去除。相同的H2O2溶液可以重复使用长达三周,没有菌落形成。结论尿液污染表面,根据表面类型不同,在3% H2O2中浸泡1 ~ 3小时即可去除细菌,无需擦洗或冲洗。相同的原液可用于重复洗涤长达三周,以扩大其可持续性和可及性。
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引用次数: 0
Contamination of hospital surfaces by third-generation cephalosporin-resistant gram-negative bacteria in district hospitals in Mwanza, Tanzania: Urgent need for enhanced infection prevention and control 坦桑尼亚姆万扎地区医院第三代耐头孢菌素革兰氏阴性菌污染医院表面:迫切需要加强感染预防和控制
IF 1.9 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-05 DOI: 10.1016/j.infpip.2025.100475
Ezekiel Gamuya , Mulki S. Salum , Beatrice Augustino Mtewele , Baraka Minja , Prisca Damiano , Conjester I. Mtemisika , Kulwa P. Mnibi , Reuben N. Abednego , Bernard C. Okamo , Vitus Silago , Stephen E. Mshana , Heike Claus , Jeremiah Seni

Background

Hospital surfaces are critical reservoirs of multidrug-resistant pathogens, including third-generation cephalosporin-resistant Gram-negative bacteria (3GC-R-GNB), significantly contributing to healthcare-associated infections (HCAIs). This challenge is pronounced in low- and middle-income countries, where resource constraints limit effective infection prevention and control (IPC) measures. This study screened hospital surfaces for 3GC-R-GNB in selected District Hospitals (DHs) in Mwanza, Tanzania.

Methods

This cross-sectional hospital-based study was conducted between June and July, 2023. Door handles, hand-washing sinks, patients' beds, and ward floors were sampled. Isolation of 3GC-R-GNB was done on MacConkey agar supplemented with cefotaxime (2 μg/ml). Bacterial identification was done by MALDI-TOF on Vitek MS while antimicrobial susceptibility testing was done by the Kirby-Bauer method. A multiplex PCR assay was applied for the detection of extended-spectrum beta-lactamase (ESBL) genes (blaCTX-M, blaSHV, and blaTEM).

Results

A total of 892 swabs were collected from hospital surfaces, of which 243 (27.2%) were 3GC-R-GNB positive. From the 243 positive samples, 55 samples exhibited polymicrobial growth making a total of 300 bacterial isolates. The most prevalent species was Acinetobacter baumannii (26.0%, 78/300), followed by Klebsiella pneumoniae (11.0%, 33/300), Escherichia coli (8.0%, 24/300), and Leclercia adecarboxylata (7.0%, 21/300). Multiplex PCR of selected isolates (n=243) revealed that 99.6% (242/243), 93.4% (227/243), and 2.9% (7/243) 3GC-R-GNB harbored blaTEM, blaCTX-M, and blaSHV genes encoding ESBLs, respectively.

Conclusion

This study reveals substantial dispersion of highly resistant Gram-negative bacteria to hospital surfaces, showing the need to prevent dispersion of such contamination and targeted hospital hygiene measures to protect patients.
医院表面是耐多药病原体的重要宿主,包括第三代耐头孢菌素革兰氏阴性菌(3GC-R-GNB),对医疗保健相关感染(HCAIs)有重要影响。这一挑战在低收入和中等收入国家尤为突出,这些国家的资源限制了有效的感染预防和控制措施。本研究在坦桑尼亚姆万扎选定的地区医院(DHs)筛选医院表面3GC-R-GNB。方法本研究于2023年6 - 7月在医院进行。对门把手、洗手池、病人床和病房地板进行了采样。在添加头孢噻肟(2 μg/ml)的MacConkey琼脂上分离3GC-R-GNB。采用Vitek质谱MALDI-TOF法进行细菌鉴定,Kirby-Bauer法进行药敏试验。采用多重PCR法检测广谱β -内酰胺酶(ESBL)基因(blaCTX-M、blaSHV和blaTEM)。结果共采集医院表面拭子892份,3GC-R-GNB阳性243份(27.2%)。在243份阳性样品中,55份样品呈现多微生物生长,共分离出300株细菌。最常见的菌种为鲍曼不动杆菌(26.0%,78/300),其次为肺炎克雷伯菌(11.0%,33/300)、大肠杆菌(8.0%,24/300)和灰木乳杆菌(7.0%,21/300)。对所选分离株(n=243)的多重PCR结果显示,3GC-R-GNB中分别含有99.6%(242/243)、93.4%(227/243)和2.9%(7/243)的blaCTX-M、blaSHV编码ESBLs基因。结论本研究揭示了高耐药革兰氏阴性菌在医院表面的大量扩散,表明有必要防止这种污染的扩散,并采取有针对性的医院卫生措施来保护患者。
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引用次数: 0
A decade of epidemiology and incidence of carbapenemase-producing bacteria in a tertiary hospital in southern Europe 欧洲南部某三级医院碳青霉烯酶产菌的流行病学和发病率研究
IF 1.8 Q3 INFECTIOUS DISEASES Pub Date : 2025-07-03 DOI: 10.1016/j.infpip.2025.100469
I. González-Gómez , G. Ruíz-Carrascoso , R. Herruzo-Cabrera

Background

Carbapenemase-producing Enterobacterales (CPE) are a growing issue that healthcare systems all over the world are facing and which have been producing clinical cases for >20 years, with a spike in incidence in the last decade. In the Universitary Hospital of La Paz (HULP), the first CPE outbreak occurred in 2011 and incidence has been variable since then.

Aim

To conduct an epidemiological analysis of the distribution and microbiological characteristics of the four main types of carbapenemases (OXA-48, VIM, KPC, and NDM) obtained from bacteria isolated in the HULP, a tertiary hospital north of the city of Madrid, between 2012 and 2022.

Methods

An observational retrospective analysis was performed to attain the incidence characteristics of CPE and their associated outbreaks. The study used data from 5723 individual cases for which the sex and age of the patient, type of sample, isolated bacteria, type of carbapenemase, type of case (infection or colonization) and where and when the isolate was obtained.

Results

Since the first outbreak of CPE was detected in 2011, contain-and-response protocols were put in place to avoid the spread of CPE within the hospital setting.

Conclusion

The implementation of CPE infection preventention and control guidance since 2013 and (in 2022) updated protocols has impacted the number of cases, but further incidence studies should be conducted to analyse the effectiveness of these measures and assess the patterns of carbapenemase genes over time.
产碳青霉烯酶肠杆菌(CPE)是世界各地卫生保健系统面临的一个日益严重的问题,并且已经产生了20年的临床病例,在过去十年中发病率激增。在拉巴斯大学医院(HULP),第一次CPE暴发发生在2011年,此后发病率一直在变化。目的对2012年至2022年在马德里市北部的一家三级医院HULP分离的细菌中获得的四种主要类型碳青霉烯酶(OXA-48、VIM、KPC和NDM)的分布和微生物学特征进行流行病学分析。方法采用观察性回顾性分析,了解CPE的发病特点及其相关暴发。该研究使用了来自5723例个体病例的数据,其中包括患者的性别和年龄、样本类型、分离的细菌、碳青霉烯酶类型、病例类型(感染或定植)以及获得分离物的地点和时间。结果自2011年首次发现CPE暴发以来,制定了控制和应对方案,以避免CPE在医院环境中传播。结论自2013年以来实施的CPE感染防控指南和(2022年)更新的方案对病例数量产生了影响,但应开展进一步的发病率研究,以分析这些措施的有效性,并评估碳青霉烯酶基因随时间的变化模式。
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引用次数: 0
Antiviral effect of 222 nm far-UVC light against human coronavirus and rhinovirus, and murine norovirus using dried inocula 222 nm远紫外线光对人冠状病毒、鼻病毒及鼠诺如病毒的抗病毒作用
IF 1.8 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-14 DOI: 10.1016/j.infpip.2025.100473
Ana C. Lorenzo-Leal, Donald Tam, Horacio Bach
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引用次数: 0
Improving ventilation hygiene in wards for immunocompromised patients: a workflow comparison of traditional and innovative duct cleaning methods 改善免疫功能低下患者病房的通风卫生:传统和创新管道清洁方法的工作流程比较
IF 1.8 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-12 DOI: 10.1016/j.infpip.2025.100472
Pascal De Waegemaeker, Thomas Snoeij, Isabel Leroux-Roels

Introduction

For a vulnerable hospital population, hospital ventilation systems can pose a risk if not maintained correctly. Dust accumulation in air ducts can create environments that allow fungal spores, such as Aspergillus.spp, to thrive, potentially leading to severe infections like invasive aspergillosis. Our study aimed to develop a safe protocol for cleaning ventilation systems on an active ward in healthcare settings.

Methods

We conducted a comparative evaluation of ventilation duct cleaning in adjacent hospital rooms. In one room, the ducts were accessed from within the room using a traditional brushing method, while in the other room, the ducts were primarily accessed from outside using a novel method including the use of newly developed low speed brushes and point extraction of debris. Air quality was monitored by counting particles every 15 minutes in 100-liter samples using a calibrated air sampler and collecting microbiological specimens before and after the cleaning process.

Results

In-room cleaning caused a significant spike in airborne particles of all sizes, along with a modest increase in Aspergillus spp. spores, which took an hour to return to baseline levels. Conversely, external access for cleaning did not notably impact room air quality.

Conclusion

These findings highlight the risks associated with internal duct cleaning, especially for patients who are vulnerable to airborne fungal infections. External duct access proves to be a safer alternative, ensuring minimal disruption to the air quality in patient care areas. This study supports the necessity of strategic planning in hospital ventilation maintenance to protect vulnerable populations.
对于脆弱的医院人群,医院通风系统如果维护不当可能会造成风险。空气管道中灰尘的积累会为曲霉等真菌孢子的滋生创造环境。Spp,茁壮成长,可能导致严重的感染,如侵袭性曲霉菌病。我们的研究旨在制定一个安全的方案,清洁通风系统在一个活跃的病房在医疗保健设置。方法对相邻病房通风管道清洁情况进行对比评价。在一个房间中,使用传统的刷刷方法从房间内进入管道,而在另一个房间中,主要使用一种新颖的方法从外部进入管道,包括使用新开发的低速刷刷和点提取碎片。空气质量监测是通过每15分钟在100升样品中使用校准空气采样器计数颗粒,并收集清洁过程前后的微生物标本。结果室内清洁导致空气中各种大小的颗粒显著增加,同时曲霉孢子也略有增加,这些孢子花了一个小时才恢复到基线水平。相反,外部清洁通道对室内空气质量没有显著影响。结论这些发现强调了内部管道清洁的风险,特别是对于易受空气真菌感染的患者。外部管道通道被证明是一种更安全的选择,确保对患者护理区域空气质量的干扰最小。本研究支持医院通风维护策略规划的必要性,以保护弱势群体。
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Infection Prevention in Practice
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