Affiliation: | a School of Veterinary Medicine, National University of Rosario (UNR), Ovidio Lagos y Ruta 33, 2170, Casilda, Argentina b Department of Veterinary Pathobiology, School of Veterinary Medicine, 1243 Veterinary Pathobiology Building, Purdue University, West Lafayette, IN 47907-1243, USA c National Council of Scientific Research (CONICET), INEI ANLIS Carlos G. Malbrán, Buenos Aires, Argentina |