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 KHV disease 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.

Sites with KHV disease must undergo a formal monitoring programme immediately following the outbreak. The FHI visit these sites to look for evidence of disease and to inspect compli

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