Babesia venatorum, a blood parasite that infects a variety of animals, has been isolated from sheep in Scotland. This potentially zoonotic is known to occur in China and Europe, but hasn't been previously identified in the UK. Researchers sampled sheep, cattle, and roe deer from two farms and confirmed infection in 15% of the sheep over a period of several months.
Read more about the confirmation of Babesia venatorum infection in sheep in the UK in the Guardian. The original research report is available in Emerging Infectious Diseases.
More details on babesiosis in animals is available in the MSD Veterinary Manual.