Occurrence of viral diseases in the rainbow trout hatcheries in France. First histopathological results.
Besse, P., Levaditi, J. C., Guillon, J. C. and de Kinkelin, P.
Ann. N.Y. Acad. Sci.
At the time being, in France, histological investigation allowed us to find two diseases which undoubtedly due to viruses: the viral septicemia of the rainbow trout (S. gairdneri) and the ulcerative form of infectious hydrops of the carp (C. carpio). During the last five years we have been able to observe five outbreaks of VHS in different parts of France, in trouts of six months to two years of age.