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

• Published in: Revista da Sociedade Brasileira de Medicina Tropical
• Main Authors: Renata Albuquerque Costa, Rayza Lima Araújo, Regine Helena Silva dos Fernandes Vieira
• Format: Article in Journal/Newspaper
• Language: English
• Published: Sociedade Brasileira de Medicina Tropical (SBMT) 2013
• Subjects: Vibrio; Crassostrea rhizophorae; Virulence factors; Arctic medicine. Tropical medicine; RC955-962; Arctic
• Online Access: https://doi.org/10.1590/0037-868210722013; https://doaj.org/article/472268d2224143e6814b668a2a0a58ab

INTRODUCTION: 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. METHODS: The isolated vibrios were submitted to biochemical identification and were tested for hemolytic and urease activities. RESULTS: 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. CONCLUSIONS: 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.