title: Effectivity of Rev 1 vaccine in rams against brucella ovis infection.
abstract: Vaccination with Rev 1 at four months of age protected rams against experimental infection with Brucella ovis. A double vaccination did not improve immunity whereas rams vaccinated later in life showed a decreased immunity to the infection. Lesions and complement fixation reactions were found to be inadequate criteria for the diagnosis of the disease in the individual ram.
mesh_terms: D000818:Animals; D002004:Brucella Vaccine; D002006:Brucellosis / Q000276:immunology / Q000517:prevention & control / Q000662:veterinary*; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology / Q000517:prevention & control*; D014611:Vaccination / Q000662:veterinary
chemical_list: D002004:Brucella Vaccine