Northern Ireland farmers urged to remain alert after Shamonda virus found in Cork
Shamonda virus Northern Ireland concerns have prompted farmers and horse owners to be urged to remain alert after positive test results were reported from two farms in County Cork.
Agriculture Minister Andrew Muir issued the warning following confirmation of the midge-borne virus in the Republic of Ireland.
DAERA has stressed that there is currently no evidence of Shamonda virus in Northern Ireland, but farmers and horse owners are being encouraged to familiarise themselves with the symptoms and seek veterinary advice if they notice unusual illness in their animals.
Shamonda virus found on two County Cork farms
Positive results for Shamonda virus have been reported from bovine samples taken from two separate farms in County Cork.
It is the first time the emerging virus has been detected in the Republic of Ireland.
The development follows the confirmation of Shamonda virus in cattle in Jersey in September and comes after the virus was identified in several European countries during 2026.
What is Shamonda virus?
Shamonda virus is primarily spread by Culicoides biting midges and mainly affects cattle.
The virus has also been detected in sheep, goats, horses and alpacas in Europe.
Symptoms in affected cattle can include fever, diarrhoea, lethargy, reduced milk production and mild respiratory problems.
Abortions and congenital defects are also possible, with some effects similar to those associated with Schmallenberg virus.
There is currently no vaccine or specific treatment available for Shamonda virus.
No evidence of Shamonda virus in Northern Ireland
DAERA says there is currently no evidence that the virus has reached Northern Ireland.
Shamonda virus is not a notifiable disease and is not currently subject to government disease controls.
There are therefore no movement restrictions or trade restrictions associated with its detection.
Officials have also stressed that there are no known human health impacts associated with the virus.
Muir urges farmers and horse owners to remain vigilant
Agriculture Minister Andrew Muir said the detection of the virus in the Republic was a notable development, particularly following the emergence of Bluetongue last year, another disease spread by midges.
He urged farmers and horse owners to be aware of both viruses and familiarise themselves with the symptoms.
Anyone who notices unusual illness in their animals is being advised to contact their private veterinary practitioner.
The Animal and Plant Health Agency confirmed the first Shamonda virus case in Jersey on 24 September, while the first positive test in the Republic of Ireland was announced on 2 October.
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DAERA – Muir notes reported Shamonda virus findings in County Cork