Disinfection Of Equipment Research Articles

The basis of bacteriological safety in the neonatal intensive care unit (literature review)

Background. According to world statistics, 7% of patients out of 100 in high-income countries and 15% of patients out of 100 in low- and middle-income countries develop infections related to medical care. As follows from the report of the World Health Organization, one in four cases of hospital sepsis that occurred in the intensive care unit is caused by hospital strains. On average, one in ten of these patients has a hospital-acquired infection that is fatal. The high-risk group includes patients in intensive care units, including newborns. In 2023, 28973 cases of neonatal infections (including intrauterine infection) were registered in medical organizations of the Russian Federation. The highest rates of neonatal morbidity were recorded in the Sverdlovsk Region (42.2%), the Trans-Baikal Territory (33.0%), the Novosibirsk Region (26.0%), the Chelyabinsk Region (22.4%), the Krasnoyarsk Territory (21.8%) and the Irkutsk Region (21.3%). Thus, infection prevention and control strategies aimed at both patients and their environment are of paramount importance in neonatal intensive care units.Objective. To summarize current relevant data on the prevention of hospital infections in neonatal intensive care units.Materials and methods. A literature review was conducted using the MEDLINE database (PubMed) as of December 2024 using keywords and a filter: randomized controlled trial, meta-analysis, systematic review.Results. This review summarizes the main data on the prevention of hospital infections in neonatal intensive care units. According to the literature, ensuring bacteriological safety in relation to the development of hospital infections depends on many factors: hand hygiene of medical personnel, organization of venous access control, disinfection of medical equipment and premises, compliance with the rules of asepsis and antiseptics when performing invasive manipulations, the introduction of modern approaches in the care of premature infants.Conclusion. There are many tasks in the intensive care unit that require innovative strategies to ensure the safe care of premature newborns. Joint efforts to standardize the processing of specialized equipment, maintain the cleanliness of the environment, comply with vascular access care protocols, adequate hand hygiene, and the active introduction of parents into newborn care are an integral part of the program aimed at preventing nosocomial infections. Active cooperation between the neonatal intensive care unit and the epidemiological service of the institution will allow us to develop a rational policy for risk management and monitoring of hospital infections.

Recreational Facilities as Reservoirs for Multidrug‐Resistant Staphylococcus aureus

ABSTRACTAntibiotic‐resistant pathogens in public settings present a growing risk to human health. Staphylococcus aureus often asymptomatically colonizes human skin, while virulent strains cause soft tissue infections, osteomyelitis, endocarditis, and are associated with cystic fibrosis. Here we investigated the presence and distribution of multidrug‐resistant S. aureus on exercise equipment in university recreation facilities. Equipment sampled included barbells (n = 10), dumbbell handles (n = 15), kettle bell handles (n = 5), ellipticals (n = 5), treadmills (n = 5), cable attachments (n = 5). Mannitol salt agar, CHROMagar‐MRSA, Gram staining and latex agglutination testing were useds to isolate and identify S. aureus, including methicillin‐resistant S. aureus. Kirby‐Bauer disc‐diffusion assay was utilized to determine antibiotic susceptibility profiles. Results show 42% of 456 S. aureus isolates from 45 different equipment surfaces were ampicillin resistant. Of 60 representative ampicillin‐resistant isolates, 92% were resistant to additional antibiotics with the majority resistant to erythromycin (40%) and sulfisoxazole (75%). Multidrug resistance to three or more drugs was observed in 73% of the ampicillin‐resistant subpopulation. These results indicate recreational facilities may serve as reservoirs for multi‐drug resistant S. aureus including methicillin‐resistant S. aureus (MRSA) and regular disinfection of equipment is warranted for safeguarding public health.

Infections acquired in barbershops - A review.

Barbershops are important venues for men to get their hair and beards done and hence, play an important role in men's social life. But barbershops can also be a source of infections. The barber's profession brings the barber into direct contact with customers who may carry pathogens, and contaminated instruments or skin-to-skin contacts might transmit infectious agents. Since barbers work with non-sterile and reusable sharp objects, a simple nick might facilitate blood-borne infections. In our review article we summarize current knowledge regarding barbershop-acquired infections including transmission routes and preventive measures. In fact, shaving in barbershops, particularly when reusing non-disinfected razor blades increases the transmission risk for the human immunodeficiency virus (HIV) and hepatitis B or C viruses. Furthermore, distinct bacteria like Staphylococcus aureus, fungi (in particular dermatophytic Trichophyton species) as well as ectoparasitic lice could be identified upon screening of the barbers' equipment and working places. However, knowledge regarding and compliance in hygiene practices varied considerably among barbers. Notably, since in certain countries barbershops are venues to contact sex workers, sexually transmitted diseases might also be acquired in barbershops. In conclusion, improving hygiene standards including disinfection of reusable equipment, and surveillance of the preventive measures would reduce the risk for barbershop-acquired infections.

Brakes and leverages for reducing the environmental impact of laboratory animal facilities: A case study at the Institut Pasteur.

The Institut Pasteur has set the ambition to encourage all staff to get involved in sustainable development across all departments on campus. The animal facility staff joined the efforts of the sustainable development department to analyse current and future processes and identify potential solutions and related brakes and leverages for the reduction of the animal facilities' environmental impact. The first step was to collect the managers' experience on the local initiatives. Then, the managers attended a workshop to share information on networks and initiatives relevant to the topic and community, and to discuss the use of consumables, including personal protective equipment, single use plastics, bedding, feed, water, chemicals, and waste management. On the topics of interest, local initiatives were specifically detailed to assess their eventual implementation in all the institute's animal facilities, and tasks were set to pursue the managers' efforts in the longer term. A scenario was used to teach how to compare the carbon footprints of washing and disinfection equipment and process and to decide on the design of an animal facility. Finally, a summary is drawn of the brakes and leverages for the reduction of the environmental impact of the institute's animal facilities.

Pseudomonas aeruginosa biofilm decontamination and removal by Ar/H2O cold atmospheric plasma in endoscope-like tubing

Abstract In medical device disinfection, removing bacteria and biofilms is challenging due to the poor penetration of detergents into the biofilm matrix. This is specifically true for endoscopes, which cannot be fully sterilized. This paper presents a new technique for decontaminating and removing P. aeruginosa biofilm from endoscope tubing using cold atmospheric plasma (CAP). The CAP is produced everywhere inside a contaminated tube under sustained Ar/H2O flow. The tube arrangement mimics the working channel environment of an endoscope, which is particularly difficult to sterilize. The discharge’s chemical activity was optimized by increasing the voltage without increasing the total power, which enhanced the production of hydroxyl radicals (OH) and hydrogen peroxide (H2O2). The disinfection treatment was tested on 24 h grown biofilm using the crystal violet assay for biofilm removal and the regrowth assay for bacterial decontamination. The treatments demonstrated effective decontamination capabilities at all treatment times with no bacterial regrowth. Etching of the biofilm sample by OH radicals was observed. After 30 min of treatment, only 18 ± 4% of biofilm remained on the surface, indicating near-complete biofilm removal and total absence of bacterial regrowth. This preliminary study demonstrates the effectiveness of using the direct contact of an Ar/H2O plasma to decontaminate and remove biofilm from complex shapes, such as flexible polytetraethylene tubes. It has the potential to enhance and shorten the disinfection of medical equipment, such as endoscopes.

Knowledge and Practice Towards Cleaning Medical Equipment among Nursing Students in a Malaysian Public University

Background: Healthcare-associated infections are infections acquired by patients during stay or receiving treatment within healthcare facility. High cases of healthcare-associated infections are contributed by poor medical equipment disinfection among healthcare workers, including nurses. It could be due to poor practice and awareness during their training in universities and colleges. This study aimed to assess the knowledge and practices regarding cleaning medical equipment and their association with socio-demographic characteristics among nursing students at International Islamic University Malaysia Kuantan Campus. Methods: A total of 252 nursing students were recruited using stratified random sampling. Data of socio-demographic characteristics, knowledge, and practices related to medical equipment disinfection were collected using an online questionnaire. Descriptive analysis and chi-square test were used to assess the level of knowledge and practice on medical equipment contamination and disinfection, and their association with socio-demographic characteristics. Results: Most respondents (84.1%) have a good level of knowledge regarding disinfecting medical equipment. Meanwhile, 50.8% of respondents have a good level of practice regarding disinfecting medical equipment. Further analysis revealed a significant strong association between academic year and level of knowledge (p<0.05). Conclusion: The study showed that most of the nursing students have good knowledge and practice regarding medical equipment disinfection. The significant strong association between academic year and level of knowledge indicates the knowledge improvement among nursing students as their academic years increasing. Though, a larger study comprising of more universities are needed to gain the better insight on influence of nursing students on healthcare-associated infections in Malaysia.

Disinfection Equipment and Technology for Clean Bathrooms

Disinfection Equipment and Technology for Clean Bathrooms

Study of the economic consequences and phthalate emission caused by centralized and decentralized patterns of infectious waste management

The development of health services of hospitals in developing countries has led to a significant increase in the production of infectious waste, which has important economic and environmental consequences. Therefore, reducing pollutant leakage caused by disinfection and reducing infectious waste management costs are important in achieving sustainable development goals in hospital management. In this study, the centralized and decentralized patterns of infectious waste management were studied in three hospitals in Behbahan, Iran. Economic analysis was done based on the financial model. Phthalate emission from disinfection equipment was measured for investigating the level of exposure to the pollutant in the studied patterns. The results showed that the cost of waste transportation for studied hospitals in the centralized patterns increased by 12.1 %. However, reductions in disinfection and transfer costs up to 32.4 % were available by increasing the segregation ratio of infectious waste. The average emission of phthalates from disinfection equipment in the studied hospitals was 0.260 ng/kg. But emission of phthalate types was not the same, so that the emission of BEHP, IBP, and DBP was 35.97, 4.90, and 1.55 μg/m3, respectively. Considering the hospital waste reduction plan and increasing the segregation ratio to reduce the costs of the hospital led to economic justification of the centralized pattern of infectious waste management as a safe option.

Practice of Sterilization and Disinfection during Hysterosalpingography in some Hospitals of the Northwest, Southwest and Littoral Regions of Cameroon

Hysterosalpingography (HSG) is a diagnostic imaging procedure used to study the female reproductive system using contrast medium which is injected into the uterus and x-ray images are taken as the dye fills the uterus and fallopian tubes. Proper sterilization and disinfection protocols are essential to minimize the risk of introducing pathogens into the reproductive tract during the procedure. The purpose of this study was to investigate disinfection and sterilization practices of HSG equipment before HSG procedure in some hospitals in Cameroon. At the end of the study, collected data was compiled and analysed, the results showed 0% of proper sterilization was done for the equipment used, all the equipment were poorly disinfected with poorly made chemicals (sodium hypochlorite) solution (100%). Most of the equipment used were either about 80% stained or rusted. Based on the finding of this study, it was concluded that the practice of sterilization and disinfection of HSG equipment in Cameroon is poor, and there is need for improvements of the practice.

EPIZOOTIC LYMPHANGITIS - THE FORGOTTEN DISEASE OF UNGULATES

Epizootic lymphangitis, as a forgotten disease of ungulates, again attracts the attention of veterinarians and zoologists. This infection, caused by pathogenic microorganisms, leads to inflammation of the lymphatic vessels, which can cause serious complications and even death of the animal. Despite the rarity of cases in recent decades, epizootic lymphangitis leaves a significant mark on the history of veterinary medicine, causing alertness among specialists. The purpose of the review. To summarize current scientific data on the etiology, pathogenesis, diagnosis and prevention of equine epizootic lymphangitis in order to assess the risk of introduction and spread of the disease to disease-free territories. Results. The review presents the epidemiological characteristics of the etiological agent of the disease, possible main and intermediate reservoirs of the pathogen in nature, mechanisms of transmission of infection, promising directions for the development of prevention and treatment tools. Conclusion. The causes of epidemics remain a mystery, but the factors contributing to the spread of the disease range from lack of vaccinations to unfavorable conditions of detention. The fight against this disease should be carried out through vaccination, isolation and quarantine of sick animals, disinfection of animal housing and equipment, as well as surveillance.

Assessing effectiveness of cleaning and disinfection of equipment and environmental surfaces in cystic fibrosis clinics using an ATP assay.

Infection control guidelines for cystic fibrosis (CF) stress cleaning of environmental surfaces and patientcare equipment in CF clinics. This multicenter study measured cleanliness of frequently touched surfaces in CF clinics using an ATP bioluminescence assay to assess the effectiveness of cleaning/disinfection and the impact of feedback. Eight surfaces were tested across 19 clinics (10 pediatric, 9 adult) over 5 rounds of testing. Rounds 1 and 2 served as uncleaned baseline, and Round 3 occurring after routine cleaning. Rounds 4 and 5 were performed after feedback provided to staff and measured after cleaning. Pass rates defined as <250 relative light units were the primary outcome. Of the 750 tests performed, 72% of surfaces passed at baseline, and 79%, 83%, and 85% of surfaces passed in Rounds 3, 4, and 5, respectively. The overall pass-rate was significantly higher in adult compared to pediatric clinics (86% vs 71%; P < 0.001). In pediatric clinics, blood pressure equipment and computer keyboards in the pulmonary function lab consistently passed, but the exam room patient/visitor chairs consistently failed in all rounds. In adult clinics blood pressure equipment, keyboards in exam rooms and exam tables passed in all rounds and no surface consistently failed. We demonstrate the feasibility of an ATP bioluminescence assay to measure cleanliness of patient care equipment and surfaces in CF clinics. Pass rates improved after cleaning and feedback for certain surfaces. We found that surfaces are more challenging to keep clean in clinics taking care of younger patients.

Medical-associated infections in children

Accurate estimation of the global number of healthcareassociated infections (HAIs) cases in children is diffi cult due to the variation in reporting and monitoring systems between diff erent countries and regions. However, if we estimate that there are about 2 billion children globally, and if to consider that a small percentage of them are hospitalized annually, we can approximate that millions of cases of HAIs are recorded each year. For example, if 1% of children are hospitalized annually, and between 5% and 20% of them develop HAIs, there are between 1 million and 4 million cases of HAIs in children each year. Preventive measures varied in eff ectiveness, but most studies indicated a signifi cant reduction in the incidence of healthcare-associated infections aft er the implementation of specifi c interventions.For example, a study conducted in a pediatric hospital in Europe reported that the implementation of preventive measures packages, including rigorous hand hygiene, equipment disinfection, and proper use of antibiotics, reduced the incidence of HAIs by 30%. Other studies have highlighted the importance of continuing education of the healthcare professionals and involving the family in care processes as key factors in preventing infections. A study from a Middle Eastern hospital showed that the incidence of IAAM decreased by 35% following the adoption of a strict antibiotic use policy and the implementation of hygiene.

Serratia marcescens outbreak at a neonatal intensive care unit in an acute care tertiary hospital in Singapore

To report the epidemiological, diagnostic, and genetic investigation of an outbreak of neonatal patients infected or colonized with Serratia marcescens (S. marcescens) including the infection control interventions. Outbreak investigation report. 28-bedded neonatal unit in an acute care tertiary hospital in Singapore divided into three areas: two negative-pressure airborne infection isolation rooms with a shared anteroom, 10 neonatal intensive care unit (NICU) beds, and 16 high dependency beds. A total of five neonates were involved in this outbreak. Screening of in-flight patients and their immediate environment for S. marcescens to determine probable environmental sources, whole genome sequencing (WGS) analysis of resulting isolates to determine clone-relatedness and possible transmission patterns. Implementation of infection control interventions included prompt isolation of cases, enhanced equipment and environmental disinfection, use of alcohol-based hand rub as the preferred hand hygiene mode, enhanced infection prevention orientation for parents, review of practices, audits, and immediate feedback on non-compliance. Five neonates infected or colonized with S. marcescens were involved in this outbreak. Four were infection cases whilst one identified through contact tracing. Three NICU sinks and the milk preparation room sink were tested positive for S. marcescens. WGS confirmed clonality of strains from two NICU sinks, and milk preparation room sink with that of the five neonates. Multiprong strategy was required to contain this outbreak. WGS analysis showed association of biofilms in sinks with the outbreak.

Analysis on the application of FMEA in 'instrument and equipment surface cleaning and disinfection' in hospitals based on standardization and cleaning and disinfection information system management.

To analyze the application of 'instrument and equipment surface cleaning and disinfection' in hospitals based on standardization and the management of cleaning and disinfection information systems. Employees and all cleaning and disinfected instruments and equipment from 56 inpatient departments in our hospital were selected as the subjects of observation. The period before the intervention (January 2023) was designated as the control group, while the period after the intervention (July 2023) was designated as the study group. In the control group, the instruments and equipment under routine management were disinfected. The research team applied the Failure Mode and Effects Analysis (FMEA) method to clean and disinfect the surfaces of instruments and equipment on the basis of standardization and cleaning and disinfection information system management. Employees' theoretical knowledge points and operational skill scores before and after the intervention were compared and evaluated. The changes in the risk priority coefficient (RPN) values of high-risk factors were analyzed. Fifty-six clinical medical staff from 56 inpatient departments in the hospital were selected to evaluate the clinical satisfaction of the cleaning and disinfection management of instruments and equipment before and after the intervention, and the clinical satisfaction of the two groups was compared. The scores of theoretical knowledge and operational skills of the staff in the research group were significantly higher than those in the control group. The passing rates of theoretical knowledge and operational skills in the control group and the research group were 44.64 and 94.64% respectively, and 55.36 and 96.43%, respectively. The qualified rate of theoretical knowledge and operational skills of staff in the study group was significantly higher than that in the control group (p < 0.05). The RPN scores of medical personnel, environment, system and system guarantee factors in the control group were 80, 80, 80, and 100, respectively. The RPN scores of medical personnel factors, environmental factors, system factors and system guarantee factors in the research group were 6, 24, 24, and 36, respectively. Through standardization and cleaning and disinfection information system management, the theoretical knowledge and technical operation capabilities of cleaning can be effectively improved.

Global Health Alert: Racing to Control Antimicrobial-Resistant Candida auris and Healthcare Waste Disinfection Using UVC LED Technology

Emerging antimicrobial-resistant (AMR) Candida auris presents a formidable global health challenge, causing severe healthcare-associated infections (HAIs) with high mortality rates. Its ability to colonize surfaces and resist standard disinfectants undermines traditional hygiene practices, prompting an urgent need for new strategies. Ultraviolet C (UVC) light offers a promising approach with rapid and broad-spectrum germicidal efficacy. This review examines current literature on UVC LED technology in combating C. auris, highlighting its effectiveness, limitations, and applications in healthcare hygiene. UVC light has potent activity against C. auris, with up to 99.9999% inactivation depending on certain conditions such as microbial load, type of organism, surface, environmental, equipment, and UVC radiation factors. UVC LEDs can effectively combat C. auris, driving down healthcare costs and reducing attributable global mortality. Here, we explore implementation strategies for the targeted disinfection of high-risk areas and equipment, air handling units (AHUs), and water treatment systems. Challenges associated with UVC LED disinfection devices in healthcare settings, current performance limitations, and radiation safety are discussed. This will help in optimizing application protocols for effective disinfection and radiation safety. To further strengthen healthcare facility hygiene practices and curb the global spread of C. auris, recommendations for integrating UVC LED disinfection into infection control programs are shared.

Investigated numerically nanoshell thickness on photothermal response of hybrid nanostructures in an aqueous medium

The current study describes the effect of changing a shell thickness on photothermal response of a hybrid nanostructures, using theoretical investigation based on the Finite Element Method (FEM) of the COMSOL multi-physics program. The hybrid nanostructures are the Core/Shell nanoparticles (C/S NPs) and the Core/Multi-Shell nanoparticles (C/MS NPs), with fixed core diameter (30 nm) and variable shell thickness (10–20 nm) to create a new type of hybrid nanostructures usable in photonic and optoelectronic applications. For these hybrid nanostructures, gold (Au) and silver (Ag) as a partner of titanium dioxide (TiO2) were used in thermo-plasmonic part. Hybrid multi-shell nanostructures consist of silver-gold and gold-silver sandwich with titanium dioxide shell in between, all of which are dispersed in an aqueous medium (n = 1.33). The optical properties, the local field distribution, and local heating control of plasmonic nanostructures have been studied under the influence of illumination at plasmonic wavelengths (405, and 532 nm). The results revealed to a clear tunable and adjustable optical and thermo-plasmonic properties by controlling the structure of the core/shell NPs. This results can be enhanced by changing the shell thickness, shape, size, and the nanostructure. The temperature elevation of the core/shell NPs was about 1–5 °C under different wavelengths of laser irradiation. Based on those results, there is possibility of using the core/shell nanoparticles as an efficient heat source in many applications, such as in the sterilization and disinfection of medical equipments.

Research and Design of Disinfection Equipment for Public Places

The starting point of my design is to redesign the existing product based on the post-epidemic era to make different functional definitions and styling changes.The scientific and technical issues, functional layout distribution, target population and usage scenarios were all well thought out before making the choice.Secondly, this paper focuses on the existing market and the pain points of disinfection products in public places and points out that different disinfection methods face different effects. In addition, reasonable solutions to the different pain points are identified. The future trends and applications of disinfection products in public places are also presented.By taking into account the existing information and the future design, we redesign the disinfection process in public places and provide a reasonable psychological analysis of the population to create safer and more secure sanitary conditions for people in the post-epidemic era.

Investigating the effect of enhanced cleaning and disinfection of shared medical equipment on health-care-associated infections in Australia (CLEEN): a stepped-wedge, cluster randomised, controlled trial

There is a paucity of high-quality evidence based on clinical endpoints for routine cleaning of shared medical equipment. We assessed the effect of enhanced cleaning and disinfection of shared medical equipment on health-care-associated infections (HAIs) in hospitalised patients. We conducted a stepped-wedge, cluster randomised, controlled trial in ten wards of a single hospital located on the central coast of New South Wales, Australia. Hospitals were eligible for inclusion if they were classified as public acute group A according to the Australian Institute of Health and Welfare, were located in New South Wales, had an intensive care unit, had a minimum of ten wards, and provided care for patients aged 18 years or older. Each cluster consisted of two randomly allocated wards (by use of simple randomisation), with a new cluster beginning the intervention every 6 weeks. Wards were informed of their allocation 2 weeks before commencement of intervention exposure, and the researcher collecting primary outcome data and audit data was masked to treatment sequence allocation. In the control phase, there was no change to environmental cleaning practices. In the intervention phase, a multimodal cleaning bundle included an additional 3 h per weekday for the dedicated cleaning and disinfection of shared medical equipment by 21 dedicated cleaning staff, with ongoing education, audit, and feedback. The primary outcome was the number of confirmed cases of HAI, as assessed by a fortnightly point prevalence survey and measured in all patients admitted to the wards during the study period. The completed trial is registered with Australia New Zealand Clinical Trials Registry (ACTRN12622001143718). The hospital was recruited on July 31, 2022, and the study was conducted between March 20 and Nov 24, 2023. We assessed 220 hospitals for eligibility, of which five were invited to participate, and the first hospital to formally respond was enrolled. 5002 patients were included in the study (2524 [50·5%] women and 2478 [49·5%] men). In unadjusted results, 433 confirmed HAI cases occurred in 2497 patients (17·3%, 95% CI 15·9 to 18·8) in the control phase and 301 confirmed HAI cases occurred in 2508 patients (12·0%, 10·7 to 13·3) in the intervention phase. In adjusted results, there was a relative reduction of -34·5% (-50·3 to -17·5) in HAIs following the intervention (odds ratio 0·62, 95% CI 0·45 to 0·80; p=0·0006), corresponding to an absolute reduction equal to -5·2% (-8·2 to -2·3). No adverse effects were reported. Improving the cleaning and disinfection of shared medical equipment significantly reduced HAIs, underscoring the crucial role of cleaning in improving patient outcomes. Findings emphasise the need for dedicated approaches for cleaning shared equipment. National Health and Medical Research Council.

Effect of water treatment processes on microbial contamination in drinking water in rural areas of the urban periphery

ABSTRACT The water treatment infrastructure facilities play an important role in ensuring the safety of drinking water. A survey of the drinking water treatment process was conducted in the urban peripheral areas of Beijing, China, and the main water treatment infrastructure facilities in terms of their impact on microbial contamination were investigated. The sedimentation equipment, filtration facilities, and disinfection equipment are all significantly correlated with the concentration of heterotrophic plate counts in drinking water. The filtration facilities and disinfection equipment were also positively correlated with the concentration of total coliform and Escherichia coli. The effect of removing microorganisms by different water disinfection methods gradually decreases in the order of ozone, chlorine, chlorine dioxide, and ultraviolet light. The effect of microbial contamination removal of different water pumping methods is as follows: direct water supply &amp;gt; pressure tank &amp;gt; secondary pressing pump station &amp;gt; water tower &amp;gt; high-level water tank, and the removal effects are 7.6, 7.4, 4.1, 3.6, and 1.7 times that of self-flowing water supply. The study provides scientific support for the renovation, and upgrading of microbial pollution reduction in drinking water in rural areas of the urban periphery.

Measuring the efficacy of standard and novel disinfection methods on frequently used physical therapy equipment: a 2-phase prospective randomized controlled trial.

Frequently used physical therapy (PT) equipment is difficult to disinfect due to equipment material and shape. The efficacy of standard disinfection of PT equipment is poorly understood. We completed a 2-phase prospective microbiological analysis of fomites used in PT at our hospital from September 2022 to October 2023. For both phases, study fomites were obtained after usage and split into symmetrical halves for sampling. In phase 1, sides were sampled following standard disinfection. In phase 2, sides were randomized 1:1 to intervention or control. Samples were obtained before and after the intervention, a disinfection cabinet using Ultraviolet C (UV-C) and 6% nebulized hydrogen peroxide. We defined antimicrobial-resistant clinically important pathogens (AMR CIP) as methicillin-resistant staphylococcus aureus (MRSA), Vancomycin Resistant Enterococcus (VRE), and Multidrug resistant (MDR)-Gram-negatives and non-AMR CIP as methicillin-sensitive staphylococcus aureus (MSSA), Vancomycin sensitive Enterococcus (VSE), and Gram-negatives. Three assessments were made: 1) contamination following standard disinfection (phase 1), 2) contamination postintervention compared to no disinfection (phase 2) and, 3) contamination following standard disinfection compared to postintervention (phase 1 vs phase 2 intervention). The median total colony-forming units (CFU) from 122 study fomite samples was 1,348 (IQR 398-2,365). At the sample level, 52(43%) and 15(12%) of samples harbored any clinically important pathogens (CIPs) or AMR CIPs, respectively. The median CFU was 0 (IQR 0-55) in the intervention group and 977 (409-2,547) in the control group (P < .00001). Following standard disinfection, PT equipment remained heavily contaminated including AMR and non-AMR CIPs. Following the intervention, PT equipment was less contaminated and harbored no AMR CIPs compared to control sides supporting the efficacy of the intervention on difficult-to-disinfect PT fomites.