First report of the giant liver fluke (Fascioloides magna) in Slovenia and molecular species confirmation based on the ITS2 marker

The first report and molecular confirmation of <i>F. magna</i> in red deer, fallow deer, and roe deer in Slovenia indicate a northward spread of the trematode along the eastern side of the Mura River. Hunters, veterinarians, and farmers should be made aware of the existence of <i>F. magna</i> in north-east Slovenia and encouraged to report any liver abnormalities in ruminants. Future research should aim to investigate the spread of <i>F. magna</i>, its origins and economic impact.