Sero-prevalence of brucellosis (Brucella abortus) in bovines from Caquetá state, Colombia द्वारा Motta-Delgado, Pablo Andrés, Martínez-Tovar, Ricardo Alberto, Londoño-Giraldo, Marliyanini, Rojas-Vargas, Erika Paola, Herrera-Valencia, Wilmer