1. Graduate Program in Animal Health and Biomedical Science Faculty of Veterinary Medicine Kasetsart University Bangkok Thailand
2. Department of Veterinary Microbiology and Immunology Faculty of Veterinary Medicine Kasetsart University Bangkok Thailand
3. Interdisciplinary Program in Genetic Engineering and Bioinformatics Graduate school Kasetsart University Bangkok Thailand
4. Research Laboratory of Biotechnology Chulabhorn Research Institute Bangkok Thailand
5. Department of Medicine and Epidemiology School of Veterinary Medicine University of California Davis California USA