1. Graduate Program in Cellular and Molecular Biology, Federal University of Paraná, Curitiba, Brazil.
2. Agency of Agricultural Defense of Paraná—ADAPAR, Program “Surveillance and Prevention of Transmissible Nervous Syndromes in Production Animals,” Curitiba, Brazil.
3. Department of Preventive Veterinary Medicine and Animal Health, University of São Paulo, São Paulo, Brazil.
4. Institute of Biotechnology, UNESP—Univ. Estadual Paulista, Campus de Botucatu, Botucatu, Brazil.
5. Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA.
6. Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil.
7. Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA.