Description
 Spring viraemia of carp (SVC) is a viral disease that causes 100% mortality of all ages of carp and other species of coarse fish. Outbreaks usually occur in the spring a temperatures rise with maximum mortalities between 10oC-15oC.
Signs of Infection
Clinical signs of the disease can include darkening of the skin, swollen eyes, abdominal swelling (dropsy), pale gills, trailing faecal casts and protrusion of the anus. Infected fish may also be lethargic, show loss of balance and display areas of bleeding on the gills, skin and internal organs.
Pathways
SVC is usually spread through close contact between infected fish and can be transferred by the fish louse Argulus spp. and the fish leech Piscicola geometra.
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