Hemolytic and urease activities in vibrios isolated from fresh and frozen oysters.

Renata Albuquerque Costa, Rayza Lima Araújo, Regine Helena Silva dos Fernandes Vieira

Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, CE, Brasil. renata.albuq@gmail.com

Revista da Sociedade Brasileira de Medicina Tropical 2013 Jan-Feb

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The present study aimed to survey the Vibrio microbiota of oysters (Crassostrea rhizophorae) obtained from restaurants in Fortaleza, State of Ceará, Brazil, and to identify virulence factors. The isolated vibrios were submitted to biochemical identification and were tested for hemolytic and urease activities. The isolated strains belonged to 13 species, with predominance of Vibrio mimicus. Of the strain isolates only from fresh samples, 20.5% and 2.8% showed hemolytic and urease activities, respectively. The findings support the little-publicized claim that Vibrio species other than V. parahaemolyticus and V. vulnificus can represent a health risk to public health.

Citation

Renata Albuquerque Costa, Rayza Lima Araújo, Regine Helena Silva dos Fernandes Vieira. Hemolytic and urease activities in vibrios isolated from fresh and frozen oysters. Revista da Sociedade Brasileira de Medicina Tropical. 2013 Jan-Feb;46(1):103-5