Research Article
Evaluation of Vaccination with Brucella abortus S19 Vaccine in Cattle Naturally Infected with Brucellosis in Productive Systems Found in the Mexican Tropic
A. Peniche Cardena,
D. Martinez Herrera,
J.L. Franco Zamora,
F. Barradas Pina,
B. Molina Sanchez,
E.J. Gutierrez Ruiz,
J.J. Williams,
F. Morales Alvarez and R. Flores Castro