1. Virology Section, Microbiology and Parasitology Laboratory, College of Veterinary Medicine National University of San Marcos Lima Peru
2. Department of Veterinary and Biomedical Sciences, Animal Disease Research and Diagnostic Laboratory (ADRDL) South Dakota State University Brookings South Dakota
3. Immunology Section, Microbiology and Parasitology Laboratory, College of Veterinary Medicine National University of San Marcos Lima Peru