期刊
REVISTA DA SOCIEDADE BRASILEIRA DE MEDICINA TROPICAL
卷 47, 期 3, 页码 327-333出版社
SOC BRASILEIRA MEDICINA TROPICAL
DOI: 10.1590/0037-8682-0069-2014
关键词
Oyster; Crassostrea gigas; Vibrio parahaemolyticus; Vibrio vulnificus; Shellfish; Polymerase chain reaction
资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Fundacao de Amparo a Pesquisa do Estado de Santa Catarina (FAPESC)
Introduction: This research aimed to identify and quantify potentially pathogenic Vibrio from different cultivations of bivalve shellfish in the State of Santa Catarina, Brazil, and water regions in the South Bay, as well as correlate the incidence of these microorganisms with the physicochemical parameters of marine waters. Methods: Between October 2008 and March 2009, 60 oyster and seawater samples were collected from six regions of bivalve mollusk cultivation, and these samples were submitted for Vibrio counts. Results: Twenty-nine (48.3%) oyster samples were revealed to be contaminated with one or more Vibrio species. The Vibrio parahaemolyticus and Vibrio vulnificus counts in the samples ranged from <0.5 log(10) Most Probable Number (MPN) g(-1) to 2.3 log(10) MPN g(-1) oyster and from <0.5 log(10) MPN g(-1) to 2.1 log(10) MPN g(-1) oyster, respectively. Of the 60 seawater samples analyzed, 44 (73.3%) showed signs of contamination with one or more vibrio species. The counts of V parahaemolyticus and V vulnificus in the samples ranged from <0.3 log(10) MPN.100mL(-1) to 1.7 log(10) MPN.100mL(-1) seawater and from <0.3 log(10) MPN.100mL(-1) to 2.0 log(10) MPN-100mL(-1) seawater, respectively. A positive correlation between V vulnificus counts and the seawater temperature as well as a negative correlation between the V parahaemolyticus counts and salinity were observed. Conclusions: The results suggest the need to implement strategies to prevent vibrio diseases from being transmitted by the consumption of contaminated bivalve shellfish.
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