a chronic pneumonia of sheep caused by a lentivirus,which also causes visna when it invades the brain of sheep.In maedi the characteristic features are a prolonged incubation period of more than two years,a progressive pneumonia which lasts for about six months,and,at the inevitable death,an abnormally high density and heaviness of the lungs
a chronic pneumonia of sheep caused by a lentivirus,which also causes visna when it invades the brain of sheep.In maedi the characteristic features are a prolonged incubation period of more than two years,a progressive pneumonia which lasts for about six months,and,at the inevitable death,an abnormally high density and heaviness of the lungs
Maedi Visna . EKI terminibaas Esterm. Eesti Keele Instituut, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/Maedi%20Visna/1/eng (01.07.2026)
