A private laboratory has reported positive tests for Shamonda virus in bovine samples from two farms in County Cork, marking the first reported detection of the emerging virus in Ireland. The Department of Agriculture, Food and the Marine is now working with the laboratory on follow-up investigations.
Minister for Agriculture, Food and the Marine Martin Heydon TD said the department’s laboratory services were aware of the result. The announcement was published on gov.ie on 2 October 2026.
Shamonda virus Ireland: What farmers need to know
Shamonda virus, also known as SHAV, is a midge-borne virus closely related to Schmallenberg virus. It primarily affects cattle, sheep and goats, although infections have also been reported in some horses in Europe.
The virus is spread by biting midges, meaning risk can be influenced by seasonal conditions and the movement of infected insects. Ireland’s Department of Agriculture, Food and the Marine has been monitoring the virus’s spread across Europe since the summer.
Potential effects on livestock
Most infected animals are expected to experience only mild illness. However, infection can be a particular concern in pregnant animals, where it may contribute to pregnancy loss.
- Shamonda virus mainly affects cattle, sheep and goats.
- Some horses in Europe have also been affected.
- Pregnant animals may face a greater risk of complications.
- There is currently no vaccine or specific treatment.
Testing, trade and movement rules
The positive results were reported by a private laboratory and are subject to further investigation in cooperation with departmental laboratory services. Shamonda virus is not currently a notifiable disease in Ireland or the European Union.
As a result, the department said there are no associated movement or trade restrictions. Farmers should continue to follow established biosecurity measures and seek professional veterinary advice where animals show signs of illness or where there are concerns about pregnancy outcomes.
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Advice for farmers and horse owners
Farmers and horse owners who are concerned about possible infection should contact their private veterinary practitioner. A vet can assess symptoms, advise on testing and explain appropriate measures for individual animals.
Because no vaccine or treatment is currently available, early veterinary guidance and good herd and stable management remain important. Owners should also keep accurate records of illness, pregnancy loss and animal movements to support any follow-up investigation.
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What happens next?
The Department of Agriculture, Food and the Marine is engaging with the private laboratory to clarify and investigate the reported findings. Further information may follow as laboratory and veterinary assessments progress.
Key takeaway: Shamonda virus has been reported in bovine samples from two Cork farms, but it is not currently notifiable in Ireland or the EU and does not trigger trade or movement restrictions. Farmers and horse owners should contact a private vet with any concerns.
Article/Image Courtesy: gov.ie
