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Osman AH, Darkwah S, Kotey FCN, Odoom A, Hotor P, Dayie NTKD, Donkor ES. Reservoirs of Nosocomial Pathogens in Intensive Care Units: A Systematic Review. ENVIRONMENTAL HEALTH INSIGHTS 2024; 18:11786302241243239. [PMID: 38828046 PMCID: PMC11141231 DOI: 10.1177/11786302241243239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/14/2024] [Indexed: 06/05/2024]
Abstract
Background Nosocomial pathogens are known to exacerbate morbidity and mortality in contemporary critical healthcare. Hospital fomites, which include inanimate surfaces, have been identified as "breeding grounds" for pathogens that cause nosocomial infections. This systematic review aimed to deliver incisive insights on nosocomial pathogens in intensive care units (ICUs) and the role of fomites as potential reservoirs for their transmission. Method An extensive exploration of electronic databases, including PubMed and Scopus, from 1990 to 2023, was carried out between 25th and 29th May 2023, per standard PRISMA guidelines. Information were extracted from articles that reported on fomites in the ICU. Studies that did not quantitatively report the fomite contamination, and those that exclusively took samples from patients in the ICU were excluded from the analysis. Results About 40% of the total samples collected on fomites from all the studies yielded microbial growth, with species of Staphylococcus being the most predominant. Other prevalent microbes were Acinetobacter baumannii, Escherichia coli, Klebsiella pneumoniae, Candida spp., Enterococcus sp., and Enterobacter sp. The neonatal intensive care unit (NICU) had the highest proportion of contaminated fomites. Among known fomites, the sphygmomanometer exhibited a 100% detection rate of nosocomial pathogens. This included E. aerogenes, Staphylococcus aureus, coagulase-negative Staphylococci (CoNS), E. coli, and K. pneumoniae. Multidrug-resistant (MDR) bacteria, such as methicillin-resistant S. aureus (MRSA), vancomycin-resistant Enterococci (VRE), extended-spectrum beta-lactamase (ESBL)-producing E. coli, and MDR Pseudomonas aeruginosa were commonly isolated on fomites in the ICUs. Conclusion Many fomites that are readily used in patient care in the ICU harbour nosocomial pathogens. The most common fomite appeared to be mobile phones, sphygmomanometers, and stethoscopes, with Staphylococcus being the most common contaminant. Consequently, the need for rigorous disinfection and sterilization protocols on fomites in the ICU cannot be overemphasized. Additionally, heightened awareness on the subject among health professionals is crucial to mitigating the risk and burden of nosocomial infections caused by drug-resistant bacteria.
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Affiliation(s)
- Abdul-Halim Osman
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Samuel Darkwah
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Fleischer C N Kotey
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Alex Odoom
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Prince Hotor
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Nicholas T K D Dayie
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Eric S Donkor
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
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Ribeiro MAL, Ribeiro SAL, Prado PR, Prolo Júnior SL, Carvalho CM, Meneguetti DUO, Ribeiro MAL. Analysis of fungal microbiota of ambient air in an intensive care unit in Rio Branco, Acre, Western Amazon, Brazil. BRAZ J BIOL 2023; 83:e272141. [PMID: 37971085 DOI: 10.1590/1519-6984.272141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/29/2023] [Indexed: 11/19/2023] Open
Abstract
Fungi exhibit three adverse effects on human health: inflammatory, allergic and toxic effects, these implications affect mainly immunodepressed patients. The objective of this work was to analyze the fungal microbiota of the ambient air of an Intensive Care Unit. Three collections were carried out in an Intensive Care Unit in the city of Rio Branco, Acre, Western Amazon, Brazil from March to May 2017. 126 Petri dishes were exposed with the culture medium Agar Sabouraud with chloramphenicol and Agar Mycosel, considering the distribution of the 21 air conditioners, split residential model. The plates were incubated for seven days at room temperature and the growth of Colony Forming Units was observed. Colony counting and isolation for the morphological characterization of the granted fungi was performed. After quantification, the concentration of fungi per cubic meters of air (CFU.m-3) was settled. The third collection had a larger number of colony forming units with 48.6%. In the total of the analyzed samples, filamentous fungi (85.5%) and yeasts (14.5%) were isolated. Thirteen genera of fungi were identified, with the most frequent filaments being Cladosporium spp. 33.0%, Aspergillus spp. 30.4% and Penicillium spp. 19.6%, and yeasts Candida spp. 52.6%, Trichosporon spp. 36.9%. The colony-forming unit per cubic meter (CFU.m-3) did not shown any difference between the Cores in the same collection period, however in the 1st and 3rd collection, Core 1 had the highest average. The fungal microbiota of this Unit presented thirteen different genera potentially pathogenic, revealing the need for monitoring microorganisms and prevention actions.
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Affiliation(s)
- M A L Ribeiro
- Universidade Federal do Acre - UFAC, Centro de Ciências da Saúde e do Desporto, Rio Branco, AC, Brasil
| | - S A L Ribeiro
- Universidade Federal do Acre - UFAC, Centro de Ciências de Biológicas e da Natureza, Rio Branco, AC, Brasil
| | - P R Prado
- Universidade Federal do Acre - UFAC, Centro de Ciências da Saúde e do Desporto, Rio Branco, AC, Brasil
| | - S L Prolo Júnior
- Universidade Federal do Acre - UFAC, Campus Floresta, Cruzeiro do Sul, AC, Brasil
| | - C M Carvalho
- Universidade Federal do Acre - UFAC, Centro de Ciências de Biológicas e da Natureza, Rio Branco, AC, Brasil
| | - D U O Meneguetti
- Universidade Federal do Acre - UFAC, Colégio de Aplicação, Rio Branco, AC, Brasil
| | - M A L Ribeiro
- Universidade Federal do Acre - UFAC, Centro de Ciências da Saúde e do Desporto, Rio Branco, AC, Brasil
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3
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Calumby RJN, Onofre-Cordeiro NA, Silva KWL, Gomes DCS, Moreira RTF, Araújo MAS. Fungal identification in the air and water of a hemodialysis unit in Brazil. BRAZ J BIOL 2023; 83:e275136. [PMID: 37937629 DOI: 10.1590/1519-6984.275136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/06/2023] [Indexed: 11/09/2023] Open
Abstract
The presence of fungi in healthcare settings, including hemodialysis units, represents a significant risk for immunocompromised patients. This study aimed to investigate the occurrence of fungi in the air and water of a hemodialysis unit located in a tertiary public hospital in Maceió, Alagoas, Brazil. Over a period of three consecutive months, monthly air samples were collected and analyzed using the spontaneous sedimentation technique on Petri dishes containing Sabouraud Dextrose Agar (SDA). Simultaneously, water samples (100 mL) were collected from four specific water distribution points and subjected plating on SDA. Fungi were phenotypically identified based on their macroscopic and microscopic characteristics. In total, 498 colony-forming units (CFUs) of fungi were isolated, with 86 CFUs originating from the air and 412 CFUs from the water. Regarding the water samples, a higher concentration of fungal CFUs was observed in the potable water from the supply network (229 CFUs). Unexpectedly, 23 CFUs were identified in the reverse osmosis samples and 11 CFUs in the storage tank, which are post-treatment points where the presence of microorganisms is not desired. The fungus Cladosporium spp. was the most prevalent in both air and water samples, followed by Penicillium spp. in the air and Rhodotorula spp. in the water. These findings underscore the need to implement effective control and monitoring measures for fungi in the hemodialysis unit to ensure patient safety.
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Affiliation(s)
- R J N Calumby
- Universidade Federal de Alagoas - UFAL, Campus A. C. Simões, Maceió, AL, Brasil
| | | | - K W L Silva
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - D C S Gomes
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - R T F Moreira
- Universidade Federal de Alagoas - UFAL, Campus A. C. Simões, Maceió, AL, Brasil
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Suehara MB, Silva MCPD. Prevalence of airborne fungi in Brazil and correlations with respiratory diseases and fungal infections. CIENCIA & SAUDE COLETIVA 2023; 28:3289-3300. [PMID: 37971011 DOI: 10.1590/1413-812320232811.08302022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 04/02/2023] [Indexed: 11/19/2023] Open
Abstract
Airborne fungi are dispersed through the air. The aim of this study was to determine the prevalence of airborne fungi in Brazil and understand the relationship between fungal growth and respiratory diseases and infections. We conducted an integrative literature review of studies conducted in Brazil based on searches of the PubMed, MEDLINE-BIREME, SciELO, and LILACS databases for full-text articles published between 2000 and 2022. The searches returned 147 studies, of which only 25 met the inclusion criteria. The most prevalent genera of airborne fungi in Brazil are Aspergillus, Penicillium, Cladosporium, Curvularia, and Fusarium. The studies were conducted in the states of Maranhão, Ceará, Piauí, Sergipe, Mato Grosso, Pernambuco, Rio Grande do Sul, Santa Catarina, Rio de Janeiro, São Paulo, and Minas Gerais. The findings also show the relationship between fungi and meteorological factors and seasonality, the sensitivity of atopic individuals to fungi, and the main nosocomial mycoses reported in the literature. This work demonstrates the importance of maintaining good microbiological air quality to prevent potential airborne diseases.
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Affiliation(s)
- Marcelo Batista Suehara
- Universidade Federal da Integração Latino-Americana - Unidade PTI. Av. Tarquínio Joslin dos Santos 1000, Polo Universitário. 85870-650 Foz do Iguaçu PR Brasil.
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Niu Z, Zheng L, Yang P, Wang J, Tian M, Pan Y, Zhao D, Yang Z, Zhu J. Detection of Alternaria solani with high accuracy and sensitivity during the latent period of potato early blight. Front Microbiol 2022; 13:1016996. [PMID: 36212850 PMCID: PMC9537451 DOI: 10.3389/fmicb.2022.1016996] [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: 08/11/2022] [Accepted: 09/05/2022] [Indexed: 11/23/2022] Open
Abstract
Early blight (EB) disease, caused mainly by Alternaria solani, is an economic threat to potato and tomato production worldwide. Thus, accurate and sensitive detection of the fungal pathogen of this disease in plants at the early infection stage is important for forecasting EB epidemics. In this study, we developed an RNA-based method that enables highly accurate and sensitive A. solani detection in a whole potato leaf at a single spore level based on quantitative real-time polymerase chain reaction (qPCR). We discovered jg1677, a highly expressed gene whose full-length coding sequence is very specific for A. solani, by analyzing A. solani transcripts isolated from enhanced high throughput transcriptome of infected potato leaves by A. solani and using the National Center for Biotechnology Information's basic local alignment search tool. The specificity of the primers derived from jg1677 was determined using 22 isolates of common potato pathogens, including seven Alternaria isolates. Detecting jg1677 transcripts with qPCR is 1,295 times more sensitive than detecting genomic DNA. In addition, the expression pattern of jg1677 at different infection stages was determined by qPCR. What is more, jg1677 was expressed relatively stable between 15 and 35°C in infected leaves, and its expression was virtually unaffected in isolated leaves left at room temperature for 24 h. Our work provides a much more sensitive and accurate method compared to conditional DNA-based ones, permitting a very early diagnosis of EB and lowering the risk of EB epidemics.
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Affiliation(s)
- Zijian Niu
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Lijia Zheng
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Pan Yang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Jinhui Wang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Mengjun Tian
- Qinhuangdao Plant Protection and Quarantine Station, Qinhuangdao Agricultural and Rural Bureau, Qinhuangdao, China
| | - Yang Pan
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Dongmei Zhao
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Zhihui Yang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Jiehua Zhu
- College of Plant Protection, Hebei Agricultural University, Baoding, China
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6
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Aspergillus Endophthalmitis: Epidemiology, Pathobiology, and Current Treatments. J Fungi (Basel) 2022; 8:jof8070656. [PMID: 35887412 PMCID: PMC9318612 DOI: 10.3390/jof8070656] [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: 04/25/2022] [Revised: 05/21/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023] Open
Abstract
Fungal endophthalmitis is one of the leading causes of vision loss worldwide. Post-operative and traumatic injuries are major contributing factors resulting in ocular fungal infections in healthy and, more importantly, immunocompromised individuals. Among the fungal pathogens, the Aspergillus species, Aspergillus fumigatus, continues to be more prevalent in fungal endophthalmitis patients. However, due to overlapping clinical symptoms with other endophthalmitis etiology, fungal endophthalmitis pose a challenge in its diagnosis and treatment. Hence, it is critical to understand its pathobiology to develop and deploy proper therapeutic interventions for combating Aspergillus infections. This review highlights the different modes of Aspergillus transmission and the host immune response during endophthalmitis. Additionally, we discuss recent advancements in the diagnosis of fungal endophthalmitis. Finally, we comprehensively summarize various antifungal regimens and surgical options for the treatment of Aspergillus endophthalmitis.
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Narayanasamy S, Williams AR, Schell WA, Moehring RW, Alexander BD, Le T, Bharadwaj RA, McGauvran M, Schroder JN, Perfect JR. Curvularia alcornii Aortic Pseudoaneurysm Following Aortic Valve Replacement: Case Report and Review of the Literature. Open Forum Infect Dis 2022; 8:ofab536. [PMID: 35350813 PMCID: PMC8947321 DOI: 10.1093/ofid/ofab536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/28/2021] [Indexed: 11/26/2022] Open
Abstract
We report the first case of Curvularia alcornii aortic pseudoaneurysm following bioprosthetic aortic valve replacement in an immunocompetent host. Infection was complicated by septic emboli to multiple organs. Despite aggressive surgical intervention and antifungal therapy, infection progressed. We review the literature on invasive Curvularia infection to inform diagnosis and management.
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Affiliation(s)
- Shanti Narayanasamy
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Adam R Williams
- Division of Cardiovascular and Thoracic Surgery, Duke University Hospital, Durham, North Carolina, USA
| | - Wiley A Schell
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Rebekah W Moehring
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Barbara D Alexander
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Thuy Le
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Ramesh A Bharadwaj
- McLeod Health Infectious Diseases, McLeod Health, Florence, South Carolina, USA
| | - Michelle McGauvran
- Division of Cardiothoracics, Department of Anesthesiology, Duke University Hospital, Durham, North Carolina, USA
| | - Jacob N Schroder
- Division of Cardiovascular and Thoracic Surgery, Duke University Hospital, Durham, North Carolina, USA
| | - John R Perfect
- Division of Infectious Diseases, Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
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8
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Büchner F, Hoffman M, Dobermann UH, Edel B, Lehmann T, Kipp F. Do closed waste containers lead to less air contamination than opened? A clinical case study at Jena University Hospital, Germany. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 136:11-17. [PMID: 34634566 DOI: 10.1016/j.wasman.2021.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/13/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
Nosocomial infections are a growing challenge at hospitals. This clinical study aimed to investigate the influence of waste container construction ((open (O), closed (C), and hands-free opening (HF)) on microbial air contamination in a hospital setting. The results are intended to help develop guidelines for waste containers for the collection of non-infectious waste at hospitals and medical facilities. The clinical experiment was conducted at the University Hospital Jena, Germany. Air Impactor samples were performed and microbiologically evaluated for bacteria and fungi both quantitatively and qualitatively. The results were statistically determined using generalized estimating equations. Quantitatively, the lowest bacterial counts in ambient air were found around closed waste containers (114.74 CFU/m3) in comparison to HF (129.28 CFU/m3) and O (126.28 CFU/m3). For fungi, the surrounding air of C (2.08 CFU/m3) and HF (1.97 CFU/m3) waste containers showed a lower impact of fungal air contamination than for O (2.32 CFU/m3). Overall, it was shown that C are more preferable to HF and O waste containers from the point of view of microbial air contamination at hospitals.
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Affiliation(s)
- Franziskus Büchner
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany.
| | - Marc Hoffman
- Integrative Health and Security Management Center, Staff Section Environmental Protection, Jena University Hospital, Bachstraße 18, D-07743 Jena, Germany
| | - Ute-Helke Dobermann
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Birgit Edel
- Institute of Medical Microbiology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Thomas Lehmann
- Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, Bachstraße 18, D-07743 Jena, Germany
| | - Frank Kipp
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
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Kumar P, Kausar MA, Singh AB, Singh R. Biological contaminants in the indoor air environment and their impacts on human health. AIR QUALITY, ATMOSPHERE, & HEALTH 2021; 14:1723-1736. [PMID: 34394766 PMCID: PMC8346343 DOI: 10.1007/s11869-021-00978-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 01/04/2021] [Indexed: 05/25/2023]
Abstract
Indoor air environment contains a complex mixture of biological contaminants such as bacteria, fungi, viruses, algae, insects, and their by-products such as endotoxins, mycotoxins, volatile organic compounds, etc. Biological contaminants have been categorized according to whether they are allergenic, infectious, capable of inducing toxic or inflammatory responses in human beings. At present, there is a lack of awareness about biological contamination in the indoor environment and their potential sources for the spreading of various infections. Therefore, this review article examines the association of biological contaminants with human health, and it will also provide in-depth knowledge of various biological contaminants present in different places such as residential areas, hospitals, offices, schools, etc. Moreover, qualitative and quantitative data of bio-contaminants in various indoor environments such as schools, hospitals, residential houses, etc. have also been derived from the recent literature survey.
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Affiliation(s)
- Pradeep Kumar
- Department of Environmental Studies, Satyawati College, University of Delhi, Ashok Vihar III, Delhi-52, India
| | - Mohd. Adnan Kausar
- Department of Biochemistry, College of Medicine, University of Hail, Hail, Kingdom of Saudi Arabia
| | - A. B. Singh
- CSIR- Institute of Genomics and Integrative Biology (IGIB), Delhi University Campus, Delhi-07, India
| | - Rajeev Singh
- Department of Environmental Studies, Satyawati College, University of Delhi, Ashok Vihar III, Delhi-52, India
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Belizario JA, Lopes LG, Pires RH. Fungi in the indoor air of critical hospital areas: a review. AEROBIOLOGIA 2021; 37:379-394. [PMID: 34007098 PMCID: PMC8119621 DOI: 10.1007/s10453-021-09706-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 04/17/2021] [Indexed: 05/31/2023]
Abstract
Invasive fungal infection is an important cause of mortality and morbidity in neonates, especially in low-birthweight neonates. The contribution of fungi in the indoor air to the incidence of mucocutaneous colonization and to the risk of invasive fungal infection in this population is uncertain. This review aimed to identify and to summarize the best available evidence on the fungal contamination in the indoor air of critical hospital areas with an emphasis on pediatric/neonatal ICUs. Publications from 2005 to 2019 were searched in the databases Scientific Electronic Library Online (SciELO), US National Library of Medicine National Institutes of Health Search (PubMed), and Latin American Caribbean Health Sciences (LILACS). Descriptors in Health Sciences (DeCS) were used. Research papers published in Portuguese, English, and Spanish were included. Twenty-nine papers on all continents except Australia were selected. The results showed that the air mycobiota contained several fungal species, notably Aspergillus, Penicillium, Cladosporium, Fusarium, and yeast (Candida) species. The selected papers point out the risks that fungi pose to neonates, who have immature immune system, and describe simultaneous external factors (air humidity, seasonality, air and people flow, use of particulate filters, and health professionals' hand hygiene) that contribute to indoor air contamination with fungi. Improving communication among health professionals is a great concern because this can prevent major health complications in neonates, especially in low-birthweight neonates. The results reinforced the need to monitor environmental fungi more frequently and efficiently in hospitals, especially in neonatal ICUs.
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Affiliation(s)
- Jenyffie A. Belizario
- Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, Franca, São Paulo 14404-600 Brazil
| | - Leonardo G. Lopes
- Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, Franca, São Paulo 14404-600 Brazil
| | - Regina H. Pires
- Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, Franca, São Paulo 14404-600 Brazil
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Matotou HRS, Sangare I, Bisseye C, Akotet MKB, Bamba S. [Biodiversity of isolated fungal flora at the reanimation service of the University Hospital Souro Sanou of Bobo-Dioulasso, Burkina Faso]. Pan Afr Med J 2021; 38:299. [PMID: 34178218 PMCID: PMC8197055 DOI: 10.11604/pamj.2021.38.299.27596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 02/04/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction les maladies nosocomiales demeurent un problème majeur de santé publique en Afrique subsaharienne notamment au Burkina Faso. Cette étude avait pour but de déterminer la biodiversité de la flore fongique identifiée au service de réanimation du Centre Hospitalier Universitaire Souro Sanou (CHUSS) de Bobo-Dioulasso. Méthodes l´étude transversale descriptive s´est déroulée d´août 2016 à janvier 2017. La flore fongique a été recherchée dans l´air ambiant et les espaces de réanimation. Les prélèvements ont été ensemencés et incubés pendant 3 à 4 jours à 37°C à l´étuve. L´identification des colonies fongiques était macroscopique et microscopique pour les champignons filamenteux. Le test de blastèse, les milieux chromogéniques et le test d´agglutination au latex ont servi à l´identification d´espèces de Candida. Résultats sur les 200 prélèvements collectés au total, 176 ont poussé sur la gélose Sabouraud-Chloramphénicol. La prévalence globale de la flore fongique était de 88% (176/200). Les moisissures étaient les agents fongiques majoritairement retrouvés (66,9%). Parmi les huit genres de moisissures identifiés, Aspergillus était le genre le plus représenté (48,9%) tandis qu´Aspergillus fumigatus était l´espèce la plus fréquemment rencontrée (32,9%). Conclusion la décontamination régulière des niches fongiques devraient être systématiques dans le service de réanimation du CHUSS de Bobo-Dioulasso.
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Affiliation(s)
- Hadry Roger Sibi Matotou
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, 01 BP 1091, Bobo-Dioulasso, Burkina Faso.,Université des Sciences de la Santé, Département de Parasitologie-Mycologie, BP 4009 Libreville, Gabon
| | - Ibrahim Sangare
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, 01 BP 1091, Bobo-Dioulasso, Burkina Faso.,Service de Parasitologie-Mycologie, Département des Laboratoires, Centre Hospitalier Universitaire Souro Sanou, 01 BP 676, Bobo-Dioulasso, Burkina Faso
| | - Cyrille Bisseye
- Laboratoire de Biologie Moléculaire et Cellulaire, Université des Sciences et Techniques de Masuku, BP 943, Franceville, Gabon
| | | | - Sanata Bamba
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, 01 BP 1091, Bobo-Dioulasso, Burkina Faso.,Service de Parasitologie-Mycologie, Département des Laboratoires, Centre Hospitalier Universitaire Souro Sanou, 01 BP 676, Bobo-Dioulasso, Burkina Faso
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12
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Almeida AGCDS, Bruna CQDM, Moriya GADA, Navarini A, Sasagawa SM, Mimica LMJ, Gambale V, Graziano KU. Impact of negative pressure system on microbiological air quality in a Central Sterile Supply Department. J Occup Health 2021; 63:e12234. [PMID: 33993611 PMCID: PMC8125467 DOI: 10.1002/1348-9585.12234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/29/2021] [Accepted: 04/21/2021] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE Guidelines recommend that the cleaning area in a Central Sterile Supply Department (CSSD) maintain a negative pressure of the environmental air, but how much this system can impact the contamination of the air by bioaerosols in the area is not known. The objective of this study was to assess the impact of negative pressure on CSSD by evaluating the microbiological air quality of this sector. METHODS Microbiological air samples were collected in two CSSD in the same hospital: one with and one without a negative air pressure system. Outdoor air samples were collected as a comparative control. Andersen six-stage air sampler was used to obtain the microbiological air samples. RESULTS The concentration of bioaerosols in the CSSD without negative pressure was 273.15 and 206.71 CFU/m3 , while in the CSSD with negative pressure the concentration of bioaerosols was 116.96 CFU/m3 and 131.10 CFU/m3 . The number of isolated colonies in the negative pressure CSSD was significantly lower (P = .01541). CONCLUSION The findings showed that the negative pressure system in the CSSD cleaning area contributed to the quantitative reduction in bioaerosols. However, the concentration of bioaerosols was lower than that established in the guideline for indoor air quality of many countries. Therefore, it cannot be concluded that CSSDs which do not have a negative pressure system in their cleaning area offer occupational risk.
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Affiliation(s)
| | | | | | | | - Suzethe Matiko Sasagawa
- Department of Pathological SciencesSanta Casa São Paulo Faculty of Medical SciencesSão PauloBrazil
| | | | - Valderez Gambale
- Department of Morphology and Basic PathologyJundiaí Medical FacultyJundiaíBrazil
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Assessment of Airborne Fungi in Indoor Environment for Biological Lab Rooms. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.4.42] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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