Article
Effects of stage of gestation and breed on bovine responses to vaccination with Brucella abortus strain 19.
Journal of the American Veterinary Medical Association - 1 Oct 1991
Crawford R P, Adams L G, Ficht T A, Williams J D
Abstract excerpt
Eighty-eight cattle were injected SC with 2.5 x 10(8) viable cells of Brucella abortus strain 19. All but 1 heifer became seropositive on the basis of the results of 7 brucellosis tests, and the proportion positive decreased with time. The proportion of cattle that were seropositive during a 20- to 67-week period after vaccination was as follows, in decreasing order: hemolysis-in-gel, 59%; buffered-acid plate...
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