Hydatid control scheme in South Powys, Wales, UK.
D000818:Animals; D004283:Dog Diseases / Q000453:epidemiology / Q000517:prevention & control; D004285:Dogs; D004443:Echinococcosis / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary*; D005589:Foxes; D006266:Health Education; D006801:Humans; D008722:Methods; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology; D014852:Wales