Broad diversity of fungi in hospital water
| Autor: | Adriano Menis Ferreira, Oleci Pereira Frota, Margarete Teresa Gottardo de Almeida, Natalia Seron Brizzotti-Mazuchi, Marcelo Alessandro Rigotti, Máira Gazzola Arroyo, Jacqueline Tanury Macruz Peresi, Álvaro Francisco Lopes de Sousa, Carlos Eduardo MacEdo, Denise de Andrade |
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| Přispěvatelé: | Population health, policies and services (PPS), Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Estadual Paulista (UNESP), Universidade Federal de Mato Grosso do Sul (UFMS), São José, Universidade de São Paulo (USP) |
| Rok vydání: | 2020 |
| Předmět: |
Technology
Veterinary medicine Candida parapsilosis Microorganism 010501 environmental sciences 01 natural sciences Aspergillus fumigatus Hospitals University 0302 clinical medicine Environmental Science(all) Agar General Environmental Science biology Biodiversity General Medicine Medicine Sample collection Chlorine Water Microbiology Cladosporium Brazil Research Article food.ingredient Article Subject Science Aureobasidium 030231 tropical medicine chemistry.chemical_element General Biochemistry Genetics and Molecular Biology MICROBIOLOGIA DA ÁGUA 03 medical and health sciences food Water Supply Humans 0105 earth and related environmental sciences Biochemistry Genetics and Molecular Biology(all) Fungi Penicillium Water biology.organism_classification Aureobasidium pullulans Mycoses chemistry Biofilms Penicillium spinulosum |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP The Scientific World Journal The Scientific World Journal, Vol 2020 (2020) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2022-04-29T08:45:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 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 ( |
| Databáze: | OpenAIRE |
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