Leopoldo, T.B. et al. 2016. Risk factors in the transmission and seroprevalence of Chlamydophila abortus infection in sheep and goats. Pesquisa Agropecuaria Brasileira. 51, 5 (Aug. 2016), 654–660. DOI:https://doi.org/10.1590/S1678-3921.pab2016.v51.20601.