title: Detection of Vibrio parahaemolyticus and Vibrio cholerae in oyster, Crassostrea rhizophorae, collected from a natural nursery in the Cocó river estuary, Fortaleza, Ceará, Brazil.
abstract: Oysters are edible organisms that are often ingested partially cooked or even raw, presenting therefore a very high risk to the consumers' health, especially in tropical regions. The presence of Vibrio cholerae and Vibrio parahaemolyticus in oysters sampled at an estuary in the Brazilian northeastern region was studied, with 300 oysters tested through an 8-months period. The salinity of the water at the sampling point varied between 3% and 27. V. cholerae was the most frequently detected species (33.3% of the samples), and of the 22 V. cholerae isolates, 20 were identified as non-O1/non-O139, with two of the colonies presenting a rough surface and most of remaining ones belonging to the Heiberg II fermentation group. V. parahaemolyticus was isolated from just one of the samples. Other bacteria such as Providencia spp., Klebsiella spp. and Morganella morganii were also isolated.
authors.affiliation: Instituto de Microbiologia Prof. Paulo de Góes, UFRJRJ, Brazil.
authors.forename: Oscarina Viana
authors.initials: OV
authors.lastname: de Sousa
authors.forename: Regine Helena Silva dos Fernandes
authors.initials: RH
authors.lastname: Vieira
authors.forename: Francisca Gleire Rodrigues
authors.initials: FG
authors.lastname: de Menezes
authors.forename: Christiane Moura Falavina
authors.initials: CM
authors.lastname: dos Reis
authors.forename: Ernesto
authors.initials: E
authors.lastname: Hofer
mesh_terms: D000818:Animals; D001938:Brazil; D015169:Colony Count, Microbial; D005516:Food Microbiology; D010125:Ostreidae / Q000382:microbiology*; D045483:Rivers; D012758:Shellfish / Q000382:microbiology*; D014734:Vibrio cholerae / Q000302:isolation & purification*; D014736:Vibrio parahaemolyticus / Q000302:isolation & purification*