A single stranded RNA virus in the family Rhabdoviridae affecting all varieties of common carp. Outbreaks can occur when water temperatures increase about 7°C in Spring time, although not exclusive to this season.
Clinical signs include darkening of the skin, swollen eyes, abdominal swelling, pale gills, and trailing faecal casts.
The diagnostic methods include:
- Virus Isolation
- Immunofluorescence antibody test (IFAT)
- Enyzme linked immunosorbent assay (ELISA)
- Molecular and sequencing