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Kassam MI, Silago V, Damiano P, Wajanga B, Seni J, Mshana SE, Kalluvya S. Patterns and outcomes of health-care associated infections in the medical wards at Bugando medical centre: a longitudinal cohort study. Antimicrob Resist Infect Control 2023; 12:139. [PMID: 38049911 PMCID: PMC10696763 DOI: 10.1186/s13756-023-01345-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 11/25/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND The burden of healthcare associated infections (HCAIs) in low- and middle-income countries (LMICs) remains underestimated due to diagnostic complexity and lack of quality surveillance systems. We designed this study to determine clinical diagnosis, laboratory-confirmed, associated factors and risks of HCAIs. METHODS This hospital-based longitudinal cohort study was conducted between March and June 2022 among adults (≥ 18 years) admitted in medical wards at BMC in Mwanza, Tanzania. Patients who were negative for HCAIs by clinical evaluations and laboratory investigations during admission were enrolled and followed-up until discharge or death. Clinical samples were collected from patients with clinical diagnosis of HCAIs for conventional culture and antimicrobial sensitivity testing. RESULTS A total of 350 adult patients with a median [IQR] age of 54 [38-68] years were enrolled in the study. Males accounted for 54.6% (n = 191). The prevalence of clinically diagnosed HCAIs was 8.6% (30/350) of which 26.7% (8/30) had laboratory-confirmed HCAIs by a positive culture. Central-line-associated bloodstream infection (43.3%; 13/30) and catheter-associated urinary tract infection (36.7%; 11/30) were the most common HCAIs. Older age was the only factor associated with development of HCAIs [mean (± SD); [95%CI]: 58.9(± 12.5); [54.2-63.5] vs. 51.5(± 19.1); [49.4-53.6] years; p = 0.0391) and HCAIs increased the length of hospital stay [mean (± SD); [95%CI]: 13.8 (± 3.4); [12.5-15.1] vs. 4.5 (± 1.7); [4.3-4.7] days; p < 0.0001]. CONCLUSION We observed a low prevalence of HCAIs among adult patients admitted to medical wards in our setting. Central-line-associated bloodstream infections and catheter-associated urinary tract infections are common HCAIs. Significantly, older patients are at higher risk of acquiring HCAIs as well as patients with HCAIs had long duration of hospital stays.
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Affiliation(s)
- Maliha I Kassam
- Department of Internal Medicine, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, P. O. Box 1370, Mwanza, Tanzania
| | - Vitus Silago
- Department of Microbiology and Immunology, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania.
| | - Prisca Damiano
- Department of Microbiology and Immunology, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
| | - Bahati Wajanga
- Department of Internal Medicine, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, P. O. Box 1370, Mwanza, Tanzania
| | - Jeremiah Seni
- Department of Microbiology and Immunology, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
| | - Stephen E Mshana
- Department of Microbiology and Immunology, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
| | - Samuel Kalluvya
- Department of Internal Medicine, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, P. O. Box 1464, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, P. O. Box 1370, Mwanza, Tanzania
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Rezaie F, Mohammadi-Shahboulaghi F, Fadayevatan R, Shati M, Ghaedamini-Harouni G. Working Condition and Job Satisfaction of Nurses as Predicting Factors of the Prevalence of Health care-associated Infections among Elderly Inpatients. IRANIAN JOURNAL OF NURSING AND MIDWIFERY RESEARCH 2023; 28:684-689. [PMID: 38205405 PMCID: PMC10775862 DOI: 10.4103/ijnmr.ijnmr_87_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 01/12/2024]
Abstract
Background Health care-Associated Infections (HCAIs) are among the most common adverse events (AEs) that can negatively affect both patients and health systems. The elderly is among patients at high risk for infections. Some controllable risk factors have received less attention in research. Therefore, this study aims to investigate the relationship between prevalence of HCAIs among elderly inpatients, job satisfaction of nurses, and working condition. Materials and Methods This cross-sectional study was conducted on 211 nurses working in hospitals affiliated with Iran University of Medical Sciences, Tehran, in 2021. The data were collected from HCAIs reports by the Nosocomial Infection Control Committee, a demographic questionnaire, the Practice Environment Scale of the Nursing Work Index (PES-NWI), and the Minnesota Satisfaction Questionnaire (MSQ). The data were statistically analyzed using Pearson correlation coefficient, ANOVA, t-test, and multiple linear regression (MLR) in SPSS 26. Results The results showed that there was a significant relationship between the PES-NWI and MSQ (r = 0.68, p < 0.00). The MLR results indicated that staffing and resource adequacy, nurse participation in hospital affairs, job satisfaction, nursing manager's leadership, and nursing foundations for quality of care are predictive factors that these could explain 78% of the changes in the prevalence of HCAIs and the goodness of fit of the regression model was acceptable [F6.210 = 129.47, p < 0.001]. Conclusions Since job satisfaction and the work condition could predict HCAIs among the elderly patients, healthcare administers are recommended to consider these two variables in the development of HCAIs prevention and control programs.
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Affiliation(s)
- Fereshteh Rezaie
- Gerontology Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Farahnaz Mohammadi-Shahboulaghi
- Iranian Research Center on Aging, Nursing Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Reza Fadayevatan
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohsen Shati
- Mental Health Research Center, Psychosocial Health Research Institute, Tehran, Iran
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Ghaedamini-Harouni
- Social Welfare Management Research Center, Social Health Research Institute, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
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El-Kady RA, Alotaibi SA, Aljabri TT, Haraka RR, Ibrahim IM, Mousa AI, Bashbeshi MW. Antimicrobial Susceptibility Trends of Proteeae Isolates From a Tertiary-Care Hospital in Western Saudi Arabia. Cureus 2023; 15:e47494. [PMID: 38021780 PMCID: PMC10663529 DOI: 10.7759/cureus.47494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND The tribe Proteeae comprises Proteus, Providencia, and Morganella species. TheseGram-negative rods are of concern in that they are involved in diverse human infections, particularly in hospital settings. In the last two decades, there has been a sharp increase in infections by multidrug-resistant (MDR) Proteeae. Therefore, the objectives of this study were to: (i) assess the prevalence of infections caused by tribe Proteeae, (ii)determine the antimicrobial susceptibility profile of the test isolates, and (iii) identify the underlying risk factors for acquisition of infection by MDR strains. METHODS During the period from January 2019 to December 2020, we conducted a retrospective review of the electronic medical and laboratory records of adult patients who received care at our institution. In addition, we analyzed the risk factors associated with acquisition of infections by members of the tribe Proteeae using univariate and multivariate regression models. RESULTS Overall 403 adult patients (average age 59.69 ± 20.33 years) were enrolled into this study (196 males; 48.6%, and 207 females; 51.4%). Proteus mirabilis was the leading pathogen (70.7%; n=285), followed by Morganella morganii (20.1%; n=81), and Providencia species (9.2%; n=37). Most of the isolates were recovered from urine (59.3%; n=239), followed by wound swabs (23.1%; n=93), with the least from blood samples (1.7%; n=7). Out of 403 Proteeae isolates, 27.3% (n=110) were found to be extended-spectrum β-lactamase (ESBL)-producers, whereas 18.4% (n=74) were MDR. Patient's age, concomitant diabetes mellitus (DM), and long hospital stays were independently associated with infection by MDR strains. CONCLUSION Infections by MDR Proteeae are leading causes for morbidity in our tertiary-care facility. Strict adherence to infection control precautions, as well as effective implementation of antimicrobial stewardship programs, are crucial to overcome these superbugs.
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Affiliation(s)
- Rania A El-Kady
- Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University, Mansoura, EGY
- Pathological Sciences, Fakeeh College for Medical Sciences, Jeddah, SAU
| | - Samah A Alotaibi
- Medical School, Fakeeh College for Medical Sciences, Jeddah, SAU
| | - Taef T Aljabri
- Medical School, Fakeeh College for Medical Sciences, Jeddah, SAU
| | - Razan R Haraka
- Medical School, Fakeeh College for Medical Sciences, Jeddah, SAU
| | | | - Amal I Mousa
- Medical Laboratory Sciences, Fakeeh College for Medical Sciences, Jeddah, SAU
| | - Mayar W Bashbeshi
- Medical Laboratory Sciences, Fakeeh College for Medical Sciences, Jeddah, SAU
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Cadena Aguirre DP, de Moura DTH, Hirsch B, Peixoto de Oliveira GH, Kum AST, Mahmood S, Bernardo WM, Sharma NR, De Moura EG. Flexible Endoscopy Versus Rigid Endoscopy or Surgery for the Management of Zenker's Diverticulum: A Systematic Review and Meta-Analysis. Cureus 2023; 15:e43021. [PMID: 37680421 PMCID: PMC10480577 DOI: 10.7759/cureus.43021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2023] [Indexed: 09/09/2023] Open
Abstract
Zenker's diverticulum treatment options range from endoscopic rigid or flexible procedures to surgery. There are limited studies available comparing these techniques. Frequently, the choice of treatment depends on the physician's preference or experience, as well as the institution's resources and capacity. Therefore, this study aims to define the best approach based on the highest efficacy and the lowest severe adverse events. In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a comprehensive search was performed. Only comparative studies were included, analyzing flexible endoscopy versus rigid endoscopy or surgery. The outcomes analyzed were clinical and technical success, severe adverse events, length of stay, and duration of the procedure. Analysis was performed using Review Manager 5.4.1 (RevMan 5.4, The Cochrane Collaboration, The Nordic Cochrane Centre, Copenhagen, Denmark). Eight retrospective cohort studies met the inclusion criteria. A total of 1281 patients were identified, 492 underwent flexible endoscopy, 453 underwent rigid endoscopy, and 336 underwent surgery. There was no difference in clinical success [risk difference (RD), 0.07 (95% CI -0.05 to 0.19%); P = 0.26], technical success [RD, 0.07 (95% CI -0.03 to 0.16); P = 0.18], severe adverse events [RD, -0.03 (95% CI -0.13 to 0.07; P = 0.052), perforation [RD, 0.07 (95% CI -0.04 to 0.19); P = 0.22] or procedure time [mean difference (MD), - 10.03 (95% CI -26.93 to 6.88); P = 0.24). There was lower length of stay with flexible endoscopy compared to the other approaches [MD, -1.98 (95% CI -3.56 to -0.40); P = 0.001]. Based on the current evidence, the three main techniques are effective for the treatment of Zenker's diverticulum. Although there was no significant difference in the safety of each technique in this meta-analysis, this result should be interpreted cautiously due to the limited data and the risk of vies between the techniques, considering that the results tend to favor flexible endoscopy, mainly explained by the newer and safer devices. Length of stay is lower with flexible endoscopy versus the other techniques, which can be beneficial considering the geriatric populations where Zenker's diverticulum mainly occurs.
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Affiliation(s)
- Diego P Cadena Aguirre
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | - Diogo Turiani Hourneaux de Moura
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | - Bruno Hirsch
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | - Guilherme Henrique Peixoto de Oliveira
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | - Angelo So Taa Kum
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | | | - Wanderley Marques Bernardo
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
| | - Neil R Sharma
- Division of Interventional Oncology and Surgical Endoscopy (IOSE), Parkview Health, Fort Wayne, USA
| | - Eduardo Guimarães De Moura
- Serviço de Endoscopia Gastrointestinal do Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, BRA
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Wright JR, Ly TT, Brislawn CJ, Chen See JR, Anderson SLC, Pellegrino JT, Peachey L, Walls CY, Bess JA, Bailey AL, Braun KE, Shope AJ, Lamendella R. cleanSURFACES® intervention reduces microbial activity on surfaces in a senior care facility. Front Cell Infect Microbiol 2022; 12:1040047. [PMID: 36439229 PMCID: PMC9682068 DOI: 10.3389/fcimb.2022.1040047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022] Open
Abstract
As one of the top public health challenges outlined by the Centers for Disease Control (CDC), estimates report that hospital acquired infections (HAIs) claim the lives of 99,000 Americans and cost healthcare providers over $28 billion each year. In addition to underlying conditions related to age, elderly patients in long-term care facilities are at an elevated risk of acquiring HAIs. A large percentage of HAIs is attributable to contaminated surfaces and medical devices. To that end, this study utilized a metatranscriptomic sequencing workflow (CSI-Dx™) to profile active microbial communities from surfaces in the HJ Heinz Community Living Center, a long-term care facility in the Veterans Affairs Pittsburgh Health Care System. Swabs were collected from high-touch surfaces (Keyboard, Ledge, Workstation on Wheels, Worksurfaces) before (Baseline) and after cleanSURFACES® were installed at 4 timepoints (Day 1, Day 7, Day 14, and Day 30). Microbial richness was significantly reduced after cleanSURFACES® intervention (Wilcoxon test with Holm correction, p=0.000179). Beta diversity results revealed distinct clustering between Baseline and Post-intervention samples (Adonis, p<0.001). Reduction in bacterial (Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus hominis) and fungal (Malassezia restricta, Candida albicans, Candida glabrata, and Candida orthopsilosis) expression of opportunistic pathogens was observed. Additionally, a subset of taxa (Corynebacterium, Cutibacterium acnes, and Ralstonia pickettii) was present in specific Post-intervention timepoints and surface types. This study revealed decreased microbial activity, highlighting the potential for the combinatorial application of cleanSURFACES® and regular decontamination practices to reduce the prevalence of microbes causing HAIs.
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Decompression only versus fusion in octogenarians with spinal epidural abscesses: early complications, clinical and radiological outcome with 2-year follow-up. Neurosurg Rev 2022; 45:2877-2885. [PMID: 35536406 PMCID: PMC9349057 DOI: 10.1007/s10143-022-01805-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/08/2022] [Accepted: 05/01/2022] [Indexed: 11/21/2022]
Abstract
Despite increased life expectancy due to health care quality improvements globally, pyogenic vertebral osteomyelitis (PVO) treatment with a spinal epidural abscess (SEA) remains challenging in patients older than 80 years. We aimed to assess octogenarians for PVO prevalence with SEA and compare after-surgery clinical outcomes of decompression and decompression and instrumentation. A retrospective review of electronic medical records at a single institution was conducted between September 2005 and December 2020. Patient demographics, surgical characteristics, complications, hospital course, and 90-day mortality were collected. Comorbidities were assessed using the age-adjusted Charlson comorbidity index (CCI). Over 16 years, 35 patients aged ≥80 years with PVO and SEA were identified. Eighteen patients underwent surgical decompression (“decompression group”), and 17 underwent surgical decompression with instrumentation (“instrumentation group”). Both groups had a CCI >6 (mean±SD, 8.9±2.1 vs. 9.6±2.7, respectively; p=0.065). Instrumentation group patients had a significantly longer hospital stay but no ICU stay. In-hospital and 90-days mortality rates were similar in both groups. The mean follow-up was 26.6±12.4 months. No further surgeries were performed. Infection levels and neurological status were improved in both groups at discharge. At the second-stage analysis, significant improvements in the blood infection parameters and the neurological status were detected in the decompression group. Octogenarians with PVO and SEA have a high adverse events risk after surgical procedures. Surgical decompression might contribute to earlier clinical recovery in older patients. Thus, the surgical approach should be discussed with patients and their relatives and be carefully weighed.
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Retrospective Study of Nosocomial Infections in the Orthopaedic and Rehabilitation Clinic of the Medical University of Lublin in the Years 2018-2020. J Clin Med 2021; 10:jcm10143179. [PMID: 34300345 PMCID: PMC8307001 DOI: 10.3390/jcm10143179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/29/2021] [Accepted: 07/14/2021] [Indexed: 11/18/2022] Open
Abstract
Nosocomial infections appear in patients treated in hospital, which are not the initial cause of admission. A retrospective study concerning nosocomial infections was conducted to provide data about the amount, frequency and types of nosocomial infections in the rehabilitation ward in the Orthopaedics and Rehabilitation Clinic of Lublin. The study was conducted on a group of 49 patients that were admitted or transferred to the ward over a period of 20 months in the years 2018–2020. The patients and therefore the infections were divided by age, sex, time of hospitalization and the underlying disease. The study also provided data about the most frequent infection types in these patients, as well as the most commonly used drugs to treat those infections. The results showed that in fact all of the examined factors have an impact on the frequency of nosocomial infections appearance rates. Furthermore, results in the study showed that factors examined by the study also have an impact on what type of infection was present in these groups of patients.
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Zhao X, Wang L, Wei N, Zhang J, Ma W, Zhao H, Han X. Epidemiological and clinical characteristics of healthcare-associated infection in elderly patients in a large Chinese tertiary hospital: a 3-year surveillance study. BMC Infect Dis 2020; 20:121. [PMID: 32041540 PMCID: PMC7011547 DOI: 10.1186/s12879-020-4840-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 01/31/2020] [Indexed: 12/17/2022] Open
Abstract
Background We analyzed the results of a 3-year surveillance study on the epidemiological and clinical characteristics of healthcare associated-infections (HAIs) in elderly inpatients in a large tertiary hospital in China. Methods Real-time surveillance was performed from January 1, 2015 to December 31, 2017. All HAIs were identified by infection control practitioners and doctors. Inpatient data were collected with an automatic surveillance system. Results A total of 134,637 inpatients including 60,332 (44.8%) elderly ≥60 years were included. The overall incidence of HAI was 2.0%. The incidence of HAI in elderly patients was significantly higher than that in non-elderly patients (2.6% vs. 1.5%, χ2 = 202.421, P < 0.01) and increased with age. The top five sites of HAIs in the elderly were the lower respiratory tract, urinary tract, blood stream, antibiotic-associated diarrhea, and surgical site. The five most common pathogens detected in elderly HAI patients were Candida albicans, Klebsiella pneumonia, Acinetobacter baumannii, Escherichia coli, and Pseudomonas aeruginosa. The incidence of ventilator-associated pneumonia in the elderly was lower than in the non-elderly, catheter-associated urinary tract infections were more common in elderly patients, and the rate of central line-associated bloodstream infection was similar between groups. The numbers of male patients and patients with comorbidities and special medical procedures (e.g., intensive care unit admission, cerebrovascular disease, brain neoplasms, hypertension, hyperlipidemia, diabetes mellitus, coronary artery disease, chronic obstructive pulmonary disease, malignant tumor, malignant hematonosis, and osteoarthropathy) were significantly higher in the elderly group, but the number of patients who underwent surgery was lower. Conclusion We observed a significantly higher overall incidence of HAI in elderly inpatients ≥60 compared to non-elderly inpatients < 60 years, but the trend was different for device-associated HAIs, which was attributed to the higher rates of comorbidities and special medical procedures in the elderly group. The main HAI sites in elderly inpatients were the lower respiratory tract, urinary tract, and bloodstream, and the main pathogens were gram-negative bacilli and Candida albicans.
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Affiliation(s)
- Xia Zhao
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
| | - Lihong Wang
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China.
| | - Nan Wei
- School of Health Management and Education, Capital Medical University, Beijing, China
| | - Jingli Zhang
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
| | - Wenhui Ma
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
| | - Huijie Zhao
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
| | - Xu Han
- Hospital Infection Management Division, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
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