Bluetongue virus spreads through livestock in Ireland and Great Britain

Bluetongue virus (BTV) is spreading across Ireland and Great Britain, affecting various ruminants including cattle, sheep, goats, and deer. In Ireland, the Department of Agriculture, Food and the Marine (DAFM) has confirmed several infections across counties such as Wexford, Wicklow, Kildare, Laois, Louth, Monaghan, Cork, and Tipperary. Notably, Ireland has recorded its first BTV-3 detection in an ovine animal following the death of a ram in County Wexford.

In Great Britain, BTV-3 cases have increased significantly during the 2026/27 season. As of late August 2026, there were 670 confirmed cases on premises, with 610 in England, 49 in Wales, and 11 in Scotland. Over 2,400 potential cases remain under investigation. While the virus can cause serious illness, production losses, and mortality in livestock, it does not pose a risk to human health or food safety.

The disease is primarily transmitted by Culicoides biting midges. While the virus can impact international live-animal trade and lead to movement restrictions, authorities note that meat and dairy products remain safe for consumption. In Great Britain, deer stalking and management activities are not currently prohibited, though managers are advised to remain vigilant for signs of infection.