Broad Diversity of Fungi in Hospital Water
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1155/2020/9358542 http://hdl.handle.net/11449/231445 |
Resumo: | Introduction. Some studies have reported the occurrence of microorganisms isolated from water. Considering these microorganisms, fungi are known to occur ubiquitously in the environment, including water, and some are pathogenic and may cause health problems, especially in immunocompromised individuals. The aim of this study was to identify fungi in hospital water samples and to correlate their presence with the concentration of free residual chlorine. Methods. Water samples (100 mL) were collected from taps (n = 74) and water purifiers (n = 14) in different locations in a university hospital. Samples were filtered through a nitrocellulose membrane and placed on Sabouraud dextrose agar and incubated for 24 hours at 30°C. Fungi were identified according to established methods based on macroscopic and microscopic characteristics (filamentous) and physiological tests (yeasts). Free chlorine residual content was measured at the time of sample collection. Results. Seventy species of fungi were identified in the water samples and about 56% of the water samples contained culturable fungi. Cladosporium oxysporum, Penicillium spinulosum, and Aspergillus fumigatus were the most common filamentous fungi. Aureobasidium pullulans and Candida parapsilosis were the most common yeasts. Chemical analyses revealed that free residual chlorine was present in 81.8% of the samples within recommended concentrations. Among samples from water purifiers, 92.9% showed low levels of free residual chlorine (<0.2 mg/L). There was no significant association between chlorine concentrations (either within or outside the recommended range) and the presence of filamentous fungi and yeasts. Conclusions. This study showed that hospital water can be a reservoir for fungi, some of which are potentially harmful to immunocompromised patients. Free residual chlorine was ineffective in some samples. |
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Broad Diversity of Fungi in Hospital WaterIntroduction. Some studies have reported the occurrence of microorganisms isolated from water. Considering these microorganisms, fungi are known to occur ubiquitously in the environment, including water, and some are pathogenic and may cause health problems, especially in immunocompromised individuals. The aim of this study was to identify fungi in hospital water samples and to correlate their presence with the concentration of free residual chlorine. Methods. Water samples (100 mL) were collected from taps (n = 74) and water purifiers (n = 14) in different locations in a university hospital. Samples were filtered through a nitrocellulose membrane and placed on Sabouraud dextrose agar and incubated for 24 hours at 30°C. Fungi were identified according to established methods based on macroscopic and microscopic characteristics (filamentous) and physiological tests (yeasts). Free chlorine residual content was measured at the time of sample collection. Results. Seventy species of fungi were identified in the water samples and about 56% of the water samples contained culturable fungi. Cladosporium oxysporum, Penicillium spinulosum, and Aspergillus fumigatus were the most common filamentous fungi. Aureobasidium pullulans and Candida parapsilosis were the most common yeasts. Chemical analyses revealed that free residual chlorine was present in 81.8% of the samples within recommended concentrations. Among samples from water purifiers, 92.9% showed low levels of free residual chlorine (<0.2 mg/L). There was no significant association between chlorine concentrations (either within or outside the recommended range) and the presence of filamentous fungi and yeasts. Conclusions. This study showed that hospital water can be a reservoir for fungi, some of which are potentially harmful to immunocompromised patients. Free residual chlorine was ineffective in some samples.Postgraduate Program in Microbiology São Paulo State University Sreet Cristóvão ColomboPostgraduate Program Nursing and Medical Course Federal University of Mato Grosso Do sulPostgraduate Program in Nursing Course Federal University of Mato Grosso Do sulDepartment of Infectious and Parasitic Diseases School of Medicine of São José Do Rio Preto São JoséAdolfo Lutz Institute Regional Laboratory of São José Do Rio Preto São JoséNursing Course Federal University of Mato Grosso Do sulPostgraduate Program in Health and Development in the Midwest Federal University of Mato Grosso Do sulDepartment of General and Specialized Nursing University of São Paulo Ribeirão Preto School of NursingPostgraduate Program in Microbiology São Paulo State University Sreet Cristóvão ColomboUniversidade Estadual Paulista (UNESP)Universidade Federal de Mato Grosso do Sul (UFMS)São JoséUniversidade de São Paulo (USP)Arroyo, Máira Gazzola [UNESP]Ferreira, Adriano MenisFrota, Oleci PereiraBrizzotti-Mazuchi, Natalia SeronPeresi, Jacqueline Tanury MacRuzRigotti, Marcelo AlessandroMacEdo, Carlos EduardoSousa, Alvaro Francisco Lopes DeAndrade, Denise DeAlmeida, Margarete Teresa Gottardo De2022-04-29T08:45:28Z2022-04-29T08:45:28Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1155/2020/9358542Scientific World Journal, v. 2020.1537-744X2356-6140http://hdl.handle.net/11449/23144510.1155/2020/93585422-s2.0-85088522470Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific World Journalinfo:eu-repo/semantics/openAccess2022-04-29T08:45:28Zoai:repositorio.unesp.br:11449/231445Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:45:28Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Broad Diversity of Fungi in Hospital Water |
title |
Broad Diversity of Fungi in Hospital Water |
spellingShingle |
Broad Diversity of Fungi in Hospital Water Arroyo, Máira Gazzola [UNESP] |
title_short |
Broad Diversity of Fungi in Hospital Water |
title_full |
Broad Diversity of Fungi in Hospital Water |
title_fullStr |
Broad Diversity of Fungi in Hospital Water |
title_full_unstemmed |
Broad Diversity of Fungi in Hospital Water |
title_sort |
Broad Diversity of Fungi in Hospital Water |
author |
Arroyo, Máira Gazzola [UNESP] |
author_facet |
Arroyo, Máira Gazzola [UNESP] Ferreira, Adriano Menis Frota, Oleci Pereira Brizzotti-Mazuchi, Natalia Seron Peresi, Jacqueline Tanury MacRuz Rigotti, Marcelo Alessandro MacEdo, Carlos Eduardo Sousa, Alvaro Francisco Lopes De Andrade, Denise De Almeida, Margarete Teresa Gottardo De |
author_role |
author |
author2 |
Ferreira, Adriano Menis Frota, Oleci Pereira Brizzotti-Mazuchi, Natalia Seron Peresi, Jacqueline Tanury MacRuz Rigotti, Marcelo Alessandro MacEdo, Carlos Eduardo Sousa, Alvaro Francisco Lopes De Andrade, Denise De Almeida, Margarete Teresa Gottardo De |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Mato Grosso do Sul (UFMS) São José Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Arroyo, Máira Gazzola [UNESP] Ferreira, Adriano Menis Frota, Oleci Pereira Brizzotti-Mazuchi, Natalia Seron Peresi, Jacqueline Tanury MacRuz Rigotti, Marcelo Alessandro MacEdo, Carlos Eduardo Sousa, Alvaro Francisco Lopes De Andrade, Denise De Almeida, Margarete Teresa Gottardo De |
description |
Introduction. Some studies have reported the occurrence of microorganisms isolated from water. Considering these microorganisms, fungi are known to occur ubiquitously in the environment, including water, and some are pathogenic and may cause health problems, especially in immunocompromised individuals. The aim of this study was to identify fungi in hospital water samples and to correlate their presence with the concentration of free residual chlorine. Methods. Water samples (100 mL) were collected from taps (n = 74) and water purifiers (n = 14) in different locations in a university hospital. Samples were filtered through a nitrocellulose membrane and placed on Sabouraud dextrose agar and incubated for 24 hours at 30°C. Fungi were identified according to established methods based on macroscopic and microscopic characteristics (filamentous) and physiological tests (yeasts). Free chlorine residual content was measured at the time of sample collection. Results. Seventy species of fungi were identified in the water samples and about 56% of the water samples contained culturable fungi. Cladosporium oxysporum, Penicillium spinulosum, and Aspergillus fumigatus were the most common filamentous fungi. Aureobasidium pullulans and Candida parapsilosis were the most common yeasts. Chemical analyses revealed that free residual chlorine was present in 81.8% of the samples within recommended concentrations. Among samples from water purifiers, 92.9% showed low levels of free residual chlorine (<0.2 mg/L). There was no significant association between chlorine concentrations (either within or outside the recommended range) and the presence of filamentous fungi and yeasts. Conclusions. This study showed that hospital water can be a reservoir for fungi, some of which are potentially harmful to immunocompromised patients. Free residual chlorine was ineffective in some samples. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 2022-04-29T08:45:28Z 2022-04-29T08:45:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1155/2020/9358542 Scientific World Journal, v. 2020. 1537-744X 2356-6140 http://hdl.handle.net/11449/231445 10.1155/2020/9358542 2-s2.0-85088522470 |
url |
http://dx.doi.org/10.1155/2020/9358542 http://hdl.handle.net/11449/231445 |
identifier_str_mv |
Scientific World Journal, v. 2020. 1537-744X 2356-6140 10.1155/2020/9358542 2-s2.0-85088522470 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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Scientific World Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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