title: A preliminary report on the occurrence of maedi-visna in sheep in Morocco.
abstract: A small scale serological survey for antibodies to maedi-visna virus among 13 flocks of sheep in Morocco revealed the infection in one flock. Infection appeared to be related with imported sheep. In addition, two abattoir surveys yielded, 0.1% lungs with gross and histological lesions suggestive of maedi.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D004797:Enzyme-Linked Immunosorbent Assay; D005602:France; D009018:Morocco; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000453:epidemiology*; D012756:Sheep; D014790:Visna-maedi virus / Q000276:immunology
chemical_list: D000914:Antibodies, Viral