Characterization and Relatedness of Marine Vibrios Pathogenic to Fish: Physiology, Serology, and Epidemiology

AUTOR(ES)

Pacha, R. E.

RESUMO

Cultural characteristics and serological relationships of pathogenic marine vibrios isolated from fish in the Pacific Northwest were studied. These organisms were compared with cultures of Vibrio anguillarum, a known fish pathogen. On the basis of morphological and cultural characteristics, the Pacific Northwest strains of Vibrio were found to be closely related to V. anguillarum. Serological analyses of thermostable antigens served to distinguish three serotypes among the vibrios. Serotype 1 was composed of organisms isolated from Northwest salmonids; serotype 2 of strains of V. anguillarum from European waters; and serotype 3 of organisms isolated from Pacific herring. The epidemiology of vibrio disease among populations of fish in the Pacific Northwest is discussed.

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