CYPRINID HERPESVIRUS I
(CHV or CyHV-1)carp pox (one of the oldest known fish diseases found in cultured carp, other cyprinids, pike-perch and aquarium fishes. It is caused by Herpesvirus cyprini. Also known as carp papillomatosis, epithelioma papulosum, and fish pox. Skin lesions appear as the water temperature drops in winter as small milky-white spots that merge and cover large skin areas)