Researchers have discovered that bank voles in southern Sweden (Skåne) carry a virus that can cause hemorrhagic fever in humans. This finding was made more than 500 km south of the previously known range. The virus strain discovered in Skåne appears to be more closely related to strains from Finland and Karelia than to the variants found in northern Sweden and Denmark. This is revealed in a new study from Uppsala University, conducted in collaboration with infectious diseases doctors in Kristianstad and published in the scientific journal Emerging Infectious Diseases.