title: Concern about 'out of sight, out of mind' attitude to maedi visna.
mesh_terms: D000383:Agriculture / Q000191:economics; D000818:Animals; D001294:Attitude to Health; D004196:Disease Outbreaks / Q000517:prevention & control / Q000662:veterinary; D006801:Humans; D008403:Mass Screening / Q000592:standards / Q000662:veterinary; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000453:epidemiology / Q000517:prevention & control*; D012756:Sheep; D006113:United Kingdom / Q000453:epidemiology; D016182:Visna / Q000453:epidemiology / Q000517:prevention & control*