Guerra, M A Comparison of the susceptibility of Brucella abortus isolates obtained before and after cows were treated with oxytetracycline and streptomycin. [electronic resource] - American journal of veterinary research Dec 1986 - 2612-3 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0002-9645 Subjects--Topical Terms: AnimalsBrucella abortus--drug effectsBrucellosis, Bovine--drug therapyCattleDrug Resistance, MicrobialFemaleMicrobial Sensitivity TestsOxytetracycline--pharmacologyStreptomycin--pharmacology