Aeromonas detection and their toxins from drinking water form reservoirs and drinking fountains


Autoria(s): RAZZOLINI, Maria Tereza Pepe; BARI, Marisa Di; SANCHEZ, Petra Sanchez; SATO, Maria Inês Zanoli; restricted (IP USP)
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

15/04/2012

15/04/2012

2008

Resumo

Aeromonads are inhabitants of aquatic ecosystems and are described as being involved in intestinal disturbances and other infections. A total of 200 drinking water samples from domestic and public reservoirs and drinking fountains located in São Paulo (Brazil), were analyzed for the presence of Aeromonas. Samples were concentrated by membrane filtration and enriched in APW. ADA medium was used for Aeromonas isolation and colonies were confirmed by biochemical characterization. Strains isolated were tested for hemolysin and toxin production. Aeromonas was detected in 12 samples (6.0%). Aeromonas strains (96) were isolated and identified as: A. caviae (41.7%), A. hydrophila (15.7%), A.allosacharophila (10.4%), A. schubertii (1.0%) and Aeromonas spp. (31.2%).The results revealed that 70% of A. caviae, 66.7% of A. hydrophila, 80% of A. allosacharophila and 46.6% of Aeromonas spp. were hemolytic. The assay for checking production of toxins showed that 17.5% of A. caviae, 73.3% of A. hydrophila, 60% of A. allosacharophila, 100% of A. schubertii, and 33.3% of Aeromonas spp. were able to produce toxins. The results demonstrated the pathogenic potential of Aeromonas, indicating that the presence of this emerging pathogen in water systems is a public health concern

Identificador

Journal of water and health, London, v. 6, n. 1, p. 117-123, 2008

1477-8920

http://producao.usp.br/handle/BDPI/14233

10.2166/wh.2007.018

http://www.iwaponline.com/jwh/006/0117/0060117.pdf

Idioma(s)

eng

Publicador

London

Relação

Journal of water and health

Direitos

openAccess

Palavras-Chave #Aeromonas #Drinking water #Enterotoxin production #Hemolytic activity #AEROMONAS #ÁGUA POTÁVEL #ENTEROTOXINAS (PRODUÇÃO) #PROCESSOS PATOLÓGICOS
Tipo

article

original article

publishedVersion