title: Intrauterine transmission of ovine progressive pneumonia virus.
abstract: Ovine fetuses, newborn lambs, and ovine colostrum were examined for ovine progressive pneumonia virus. The lambs and colostrum were also examined for specific antibody. Virus was isolated from 1 fetus, from 2 newborn lambs, and from most samples of colostrum. The fetus was about 100 days old and was carried by a seronegative ewe in contact with seropositive sheep. Both newborn lambs were carried by seropositive ewes. One lamb was dead at birth; the other lamb was normal and had not nursed. Antibody specific for the virus was present in the colostrum of 12 of 14 seropositive ewes and in the serum of 8 of 11 lambs that had nursed seropositive ewes, but not in the serum of lambs that had not nursed.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000276:immunology; D000914:Antibodies, Viral / Q000032:analysis; D003126:Colostrum / Q000276:immunology / Q000382:microbiology; D005260:Female; D005333:Fetus / Q000382:microbiology; D008431:Maternal-Fetal Exchange; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000276:immunology / Q000382:microbiology / Q000635:transmission*; D011247:Pregnancy; D012756:Sheep / Q000276:immunology; D014790:Visna-maedi virus / Q000276:immunology / Q000302:isolation & purification
chemical_list: D000914:Antibodies, Viral