Effect of ovotransferrin and lactoferrins on Chlamydophila psittaci adhesion and invasion in HD11 chicken macrophages Delphine Sylvie Anne Beeckman, Caroline M.A.D. Van Droogenbroeck, Bart J.A. De Cock, Patrick Van Oostveldt and Daisy C.G. VanrompayVet. Res., 38 5 (2007) 729-739DOI: https://doi.org/10.1051/vetres:2007028