The Fish Health Inspectorate (FHI) have found Koi herpesvirus (KHV) disease in fish at the following sites in England and Wales.
KHV is a serious viral disease of fish and is a listed disease in the United Kingdom. It affects all varieties of common and ornamental carp species (Cyprinus carpio) and can result in large scale mortalities. Fish with KHVdisease may show the following signs, especially when water temperatures are between 16 to 28 °C:
- necrotic (white or brown) patches on the gills
- rough patches on the skin and sloughing mucous
- sunken eyes
You must contact the FHI if you suspect an outbreak of KHV. This includes fish with the above signs, or deaths of carp or carp hybrids.
There is no risk to public health.
New outbreaks
When laboratory testing confirms KHV disease at a site, the FHI place statutory controls to limit the spread of the disease. These controls restrict movement of aquatic animals and ensure equipment is disinfected.
Disease controls have been applied at:
