Letter: Effect of Rev 1 vaccination.
D000818:Animals; D002002:Brucella / Q000276:immunology; D002004:Brucella Vaccine; D002003:Brucella abortus / Q000276:immunology; D002006:Brucellosis / Q000276:immunology / Q000662:veterinary*; D003168:Complement Fixation Tests; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014611:Vaccination / Q000662:veterinary*
D002004:Brucella Vaccine