STUDY ON A NEW STRAIN OF THE PATHOGENIC "VIBRIO" ISOLATED FROM FRESH-WATER FISHES

Abstract

1. An epidemic of furunculosis-like disease occurred among rainbow-trout in Gunma prefecture.
2. An agent isolated from lesions (SD) and water (SW) was identified as a vibrio classified as type 3 of Heiberg.
3. The disease could be regularly reproduced by introduction of the organisms into susceptible trout.
4. A strain isolated by Hoshina in the same epidemic proved to have identical bacteriological and biochemical properties.
5. Biochemical and bacteriological properties of the strains are described.
The authors are indebted to Professors T. Hoshina, Tokyo University of Fisheries, for placing the Hoshina strain at our disposal.