Record bluetongue outbreak spreads across UK, climate crisis cited

British livestock are experiencing the worst outbreak of bluetongue on record, with case numbers this season exceeding the combined total from the last three years. The viral disease, which originally emerged in Africa, has been detected across the UK, including as far north as Aberdeenshire, according to reporting.

Bluetongue affects sheep and cattle among other animals. In infected animals it can cause fever, ulcers, a swollen head and lameness. In some cases the animal’s tongue can turn blue and even protrude from the mouth; the most severe infections can be fatal.

Experts and commentators have linked the scale and geographic reach of the outbreak to the climate crisis. Warmer temperatures can expand the range and activity of the biting midges that transmit the virus, a factor cited in coverage of the outbreak.

Why this matters

The surge in cases has implications for animal health and farm operations. Bluetongue can cause significant illness in affected herds and flocks and, in its worst manifestations, lead to death. The northward appearance of the virus to areas such as Aberdeenshire signals a change in the patterns of disease risk for British livestock.

Farmers and veterinary authorities are likely to face increased pressure to control spread and to manage sick animals. The scale of this season relative to recent years may also influence decisions about surveillance, vaccination and movement controls for susceptible animals.

Uncertainties and context

Coverage notes the virus’s origins in Africa and identifies the climate crisis as a contributing factor to the outbreak’s severity and reach. Reporting indicates the present season’s total case count surpasses the combined caseload of the previous three years, but does not provide a precise national case number in the summaries available. Specific local impacts, economic losses or policy responses were not detailed in those reports.