High incidence of liver fluke in cattle herds in England and Wales.
D000820:Animal Diseases / Q000453:epidemiology*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000469:parasitology; D004739:England / Q000453:epidemiology; D005211:Fascioliasis / Q000453:epidemiology / Q000662:veterinary*; D015994:Incidence; D011159:Population Surveillance; D014852:Wales / Q000453:epidemiology