Journal Article Visna, a Demyelinating Transmissible Disease of Sheep Get access Björn Sigurdsson, dr. med., Björn Sigurdsson, dr. med. Keldur, Reykjarik, Iceland Search for other works by this author on: Oxford Academic PubMed Google Scholar Páll A. Pálsson, cand. med. vet., Páll A. Pálsson, cand. med. vet. Keldur, Reykjarik, Iceland Search for other works by this author on: Oxford Academic PubMed Google Scholar Halldór Grímsson, fil. mag. Halldór Grímsson, fil. mag. Keldur, Reykjarik, Iceland Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Neuropathology & Experimental Neurology, Volume 16, Issue 3, July 1957, Pages 389–403, https://doi.org/10.1097/00005072-195707000-00010 Published: 01 July 1957