Emerging Shamonda virus detected in cattle in Jersey

Shamonda virus has been detected in cattle in Jersey, marking the first confirmed presence of the emerging midge-borne virus in the British Isles. The finding follows its spread across several European countries during 2026 and raises concerns over further expansion across north-west Europe.

The UK’s Animal and Plant Health Agency has confirmed the detection of Shamonda virus in cattle in Jersey, bringing the emerging livestock disease closer to Great Britain.
The virus was identified in August in cattle showing clinical signs consistent with cases elsewhere in Europe. Primarily spread by Culicoides biting midges, Shamonda virus belongs to the same group of viruses as Schmallenberg virus.
In cattle, infection has been associated with fever, diarrhoea, lethargy and reduced milk production, while abortions have also been reported. Authorities are investigating whether infection during pregnancy could cause congenital abnormalities similar to those associated with Schmallenberg virus.
Although cattle have been most commonly affected, the virus has also been detected in sheep, goats, alpacas and horses across Europe. Of particular interest are detections in horses with neurological disease in Germany and Switzerland, as symptoms could resemble those associated with notifiable diseases such as West Nile fever.
Shamonda virus is not currently a notifiable disease in the UK, but APHA is encouraging veterinarians to investigate compatible livestock and equine cases. Diagnostic testing is now available through the agency.
The Jersey detection comes as veterinary authorities continue to monitor the virus’s spread and clinical impact across Europe.