title: Efficacy of a bacterin prepared from Chlamydia psittaci grown in cell culture for experimental immunization of ewes.
abstract: The efficacy of a bacterin prepared from Chlamydia psittaci grown in mouse L-cells was compared to a similar bacterin prepared from C. psittaci grown in chicken embryos (CE). Both bacterins significantly reduced (P less than 0.03) incidence of abortion and weak lambs compared to non-vaccinated control ewes. The L-cell bacterin elicited a greater antibody response than the CE bacterin (P less than 0.03).
mesh_terms: D000034:Abortion, Veterinary / Q000517:prevention & control*; D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis; D001428:Bacterial Vaccines; D002691:Chlamydophila psittaci / Q000254:growth & development / Q000276:immunology*; D005260:Female; D007739:L Cells; D051379:Mice; D011247:Pregnancy; D009956:Psittacosis / Q000517:prevention & control / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*; D014611:Vaccination
chemical_list: D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines