Aeromonas presence in drinking water from collective reservoirs and wells in peri-urban area in Brazil
| Autor: | Maria Tereza Pepe Razzolini, Wanda Maria Risso Günther, Heloísa Duarte de Luca, Maria Regina Alves Cardoso, Solange Martone-Rocha |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Veterinary medicine
peri-urban area Water source lcsh:QR1-502 Biology biology.organism_classification Microbiology water quality lcsh:Microbiology Agar plate Emerging pathogen Aeromonas QUALIDADE DA ÁGUA Ampicillin Environmental Microbiology medicine Water quality Water pollution Beta lactam antibiotics medicine.drug |
| Zdroj: | Brazilian Journal of Microbiology, Vol 41, Iss 3, Pp 694-699 (2010) Brazilian Journal of Microbiology v.41 n.3 2010 Brazilian Journal of Microbiology Sociedade Brasileira de Microbiologia (SBM) instacron:SBM Brazilian Journal of Microbiology, Volume: 41, Issue: 3, Pages: 694-699, Published: OCT 2010 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1678-4405 1517-8382 |
| Popis: | Aeromonas genus is considered an emerging pathogen and its presence in drinking water supplies is a reason to public health concern. This study investigated the occurrence of Aeromonas in samples from collective reservoirs and wells used as drinking water sources in a peri-urban area. A total of 35 water samples were collected from collective reservoirs and 32 from wells bimonthly, from September 2007 to September 2008. Aeromonas spp determination was carried out using a Multiple-Tube Technique. Samples were inoculated into alkaline peptone water and the superficial film formed was transferred to blood agar plates amended with ampicillin. Typical Aeromonas colonies were submitted to a biochemical screening and then to biochemical tests for species differentiation. Aeromonas was detected in 13 (19%) of the 69 samples examined (6 from collective reservoirs and 7 from wells). Concentrations of Aeromonas in collective reservoirs ranged from0.3 to 1.2 x10(2)MPN/100mL and, in wells, from0.3 to 2.4 x10(2)MPN/100mL. The most frequent specie in the collective reservoir samples was Aeromonas spp (68%), followed by A. encheleia (14%) and A. allosaccharophila (8%) and A. hydrophila (8%). Aeromonas spp (87%) was the most frequent specie isolated from well samples, followed by A. allosacchariphila (8%), A. encheleia (2%) and A. jandaei (5%). These data show the presence and diversity of Aeromonas genus in the samples analyzed and highlight that its presence in drinking water poses a significant public health concern. |
| Databáze: | OpenAIRE |
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