title: Fourth year of badger vaccination project starts in Wales.
mesh_terms: D000818:Animals; D002417:Cattle; D060740:Disease Eradication; D045969:Mustelidae / Q000276:immunology*; D015397:Program Evaluation / Q000191:economics; D014380:Tuberculosis, Bovine / Q000517:prevention & control*; D014611:Vaccination / Q000706:statistics & numerical data / Q000662:veterinary*; D014852:Wales