Broad Diversity of Fungi in Hospital Water

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dc.contributor.authorArroyo, Máira Gazzola [UNESP]
dc.contributor.authorFerreira, Adriano Menis
dc.contributor.authorFrota, Oleci Pereira
dc.contributor.authorBrizzotti-Mazuchi, Natalia Seron
dc.contributor.authorPeresi, Jacqueline Tanury MacRuz
dc.contributor.authorRigotti, Marcelo Alessandro
dc.contributor.authorMacEdo, Carlos Eduardo
dc.contributor.authorSousa, Alvaro Francisco Lopes De
dc.contributor.authorAndrade, Denise De
dc.contributor.authorAlmeida, Margarete Teresa Gottardo De
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.contributor.institutionSão José
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-29T08:45:28Z
dc.date.available2022-04-29T08:45:28Z
dc.date.issued2020-01-01
dc.description.abstractIntroduction. 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.en
dc.description.affiliationPostgraduate Program in Microbiology São Paulo State University Sreet Cristóvão Colombo
dc.description.affiliationPostgraduate Program Nursing and Medical Course Federal University of Mato Grosso Do sul
dc.description.affiliationPostgraduate Program in Nursing Course Federal University of Mato Grosso Do sul
dc.description.affiliationDepartment of Infectious and Parasitic Diseases School of Medicine of São José Do Rio Preto São José
dc.description.affiliationAdolfo Lutz Institute Regional Laboratory of São José Do Rio Preto São José
dc.description.affiliationNursing Course Federal University of Mato Grosso Do sul
dc.description.affiliationPostgraduate Program in Health and Development in the Midwest Federal University of Mato Grosso Do sul
dc.description.affiliationDepartment of General and Specialized Nursing University of São Paulo Ribeirão Preto School of Nursing
dc.description.affiliationUnespPostgraduate Program in Microbiology São Paulo State University Sreet Cristóvão Colombo
dc.identifierhttp://dx.doi.org/10.1155/2020/9358542
dc.identifier.citationScientific World Journal, v. 2020.
dc.identifier.doi10.1155/2020/9358542
dc.identifier.issn1537-744X
dc.identifier.issn2356-6140
dc.identifier.scopus2-s2.0-85088522470
dc.identifier.urihttp://hdl.handle.net/11449/231445
dc.language.isoeng
dc.relation.ispartofScientific World Journal
dc.sourceScopus
dc.titleBroad Diversity of Fungi in Hospital Wateren
dc.typeArtigo
unesp.author.orcid0000-0002-6807-1038[1]
unesp.author.orcid0000-0003-2710-2122[8]

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