The United Kingdom has confirmed an outbreak of the deadly Koi herpesvirus (KHV) disease at a fish farm in Aspley Guise, Milton Keynes.
The outbreak was confirmed on September 10 by the UK Fish Health Inspectorate at Tree Farm, Aspley Guise.
According to the UK Government, KHV is a highly contagious viral disease that attacks common and ornamental carp. It can wipe out large numbers of fish, particularly when water temperatures range between 16°C and 28°C.
Signs of infection include white or brown patches on the gills, rough skin, heavy mucus loss and sunken eyes. The government stressed the virus poses no danger to public health.
To contain the spread, authorities have imposed strict movement restrictions in the affected area. Under the order, no one is allowed to move live aquatic animals, fish eggs or reproductive materials into, out of, or within the zone without written approval from the Fish Health Inspectorate.
Operators must also dispose of dead fish through approved methods in line with environmental health rules.
The Inspectorate said affected farms must now enter a formal monitoring programme. Officials will inspect the sites for signs of disease and ensure compliance with the restrictions.
Fish owners are required to immediately report any further deaths or suspected spread to other waters, and must notify the Inspectorate at least five working days before carrying out any physical changes to their facilities, including boundaries, water bodies or site use.
The UK Government noted that it has used statutory controls to manage KHV since 2007 and runs a surveillance programme to monitor the disease. Measures include movement bans, improved biosecurity, removal of infected fish, and cleaning and disinfection of affected sites.
Koi herpesvirus is listed under the Aquatic Animal Health (England and Wales) Regulations 2009.
Fish farmers and operators have been advised to strengthen biosecurity to prevent further spread.
