Abstract
The distribution of Vibrio species in water and seafood collected from Arcachon Bay (located in the southwest of France) was studied. All invertebrate animals collected were associated with one or more Vibrio species. Eighty strains corresponding to 14 species were precisely identified. The identification of strains with V. parahaemolyticus was checked by DNA/DNA hybridization. The most frequently recovered species were V. alginolyticus, V. parahaemolyticus (non-haemolytic strains), V. harveyi and V. metschnikovii. The three V. cholerae non-O1 strains isolated from water and crab did not produce immunologically detectable cholera toxin and had no DNA fragment hybridizing with a cholera-toxin-gene-specific probe. It is suggested that the sanitary surveillance of seafood in France should include the precise characterization of potentially pathogenic Vibrio species.
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