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Wide diversity of fungal species found in wellwater for human consumption: an analytical cross-sectional study
Arroyo, Máira Gazzola; Frota, Oleci Pereira; Peresi, Jacqueline Tanury Macruz; Brizzotti-Mazuchi, Natalia Seron; Ferreira, Adriano Menis; Rigotti, Marcelo Alessandro; Department of General and Specialized NursingSousa, Alvaro Francisco Lopes de; Department of General and Specialized NursingAndrade, Denise de; Castilho, Elza Maria; Almeida, Margarete Teresa Gottardo de.
Affiliation
  • Arroyo, Máira Gazzola; Universidade Estadual Paulista. Postgraduate Program on Microbiology. São José do Rio Preto. BR
  • Frota, Oleci Pereira; Universidade Federal do Mato Grosso do Sul. Postgraduate Program on Nursing. Campo Grande. BR
  • Peresi, Jacqueline Tanury Macruz; Regional Laboratory of São José do Rio Preto. Adolfo Lutz Institute. São José do Rio Preto. BR
  • Brizzotti-Mazuchi, Natalia Seron; Faculdade de Medicina de São José do Rio Preto. Department of Infectious and Parasitic Diseases. São José do Rio Preto. BR
  • Ferreira, Adriano Menis; Universidade Federal do Mato Grosso do Sul. Postgraduate Programs on Nursing and Medicine. Três Lagoas. BR
  • Rigotti, Marcelo Alessandro; Universidade Federal do Mato Grosso do Sul. Undergraduate Nursing Course. Três Lagoas. BR
  • Department of General and Specialized NursingSousa, Alvaro Francisco Lopes de; Universidade de São Paulo. Escola de Enfermagem de Ribeirão Preto. Department of General and Specialized NursingSousa, Alvaro Francisco Lopes de. Ribeirão Preto. BR
  • Department of General and Specialized NursingAndrade, Denise de; Universidade de São Paulo. Escola de Enfermagem de Ribeirão Preto. Department of General and Specialized NursingAndrade, Denise de. Ribeirão Preto. BR
  • Castilho, Elza Maria; School of Medicine of São José do Rio Preto. Department of Molecular Biology. São José do Rio Preto. BR
  • Almeida, Margarete Teresa Gottardo de; School of Medicine of São José do Rio Preto. Department of Infectious and Parasitic Diseases. São José do Rio Preto. BR
São Paulo med. j ; São Paulo med. j;137(6): 512-516, Nov.-Dec. 2019. tab
Article de En | LILACS | ID: biblio-1094521
Bibliothèque responsable: BR1.1
ABSTRACT
ABSTRACT

BACKGROUND:

Fungi are ubiquitous in the environment. They are able to grow in water and many of them may be opportunistic pathogens.

OBJECTIVE:

The aims were to identify fungi in registered wells (RWs) and nonregistered wells (NRWs) that tap into groundwater; and to correlate the results from physicochemical assays on this water (free residual chlorine and pH) with the presence of fungi. DATA AND

SETTING:

Analytical cross-sectional quantitative study on groundwater wells in São José do Rio Preto, São Paulo, Brazil.

METHODS:

52 samples of 500 ml of water were collected from RWs and 107 from NRWs. These were sent to a microbiology laboratory to identify any fungi that were present. In addition, free residual chlorine and pH were measured immediately after sample collection. Several statistical analysis tests were used.

RESULTS:

Fungal contamination was present in 78.8% of the samples from RWs and 81.3% from NRWs. Filamentous fungi were more prevalent than yeast in both types of wells. There was no significant difference in presence of fungi according to whether chloride and pH were within recommended levels in RWs; or according to whether pH was within recommended levels in NRWs. Furthermore, there was no statistical difference in the levels of fungal contamination between RWs and NRWs.

CONCLUSION:

Both RWs and NRWs are potential reservoirs for many types of fungi. Many of these may become opportunistic pathogens if they infect immunosuppressed individuals. Furthermore, this study confirms that fungi are able to grow even when chlorine and pH parameters are within the standards recommended.
Sujet(s)
Mots clés

Texte intégral: 1 Indice: LILACS Sujet Principal: Microbiologie de l'eau / Eau de boisson / Puits à eau / Champignons Type d'étude: Observational_studies / Prevalence_studies / Risk_factors_studies Limites du sujet: Humans Pays comme sujet: America do sul / Brasil langue: En Texte intégral: São Paulo med. j Thème du journal: Cirurgia Geral / Ciˆncia / Ginecologia / MEDICINA / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Année: 2019 Type: Article

Texte intégral: 1 Indice: LILACS Sujet Principal: Microbiologie de l'eau / Eau de boisson / Puits à eau / Champignons Type d'étude: Observational_studies / Prevalence_studies / Risk_factors_studies Limites du sujet: Humans Pays comme sujet: America do sul / Brasil langue: En Texte intégral: São Paulo med. j Thème du journal: Cirurgia Geral / Ciˆncia / Ginecologia / MEDICINA / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Année: 2019 Type: Article