1. Department of Internal Medicine, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Korea.
2. Institute of Environmental Resource Research of Jeju Special Self-Governing Province, Jeju, Korea.
3. Department of Medical Entomology, Korea Center for Disease Control and Prevention, Seoul, Korea.
4. Department of Food Biotechnology, Cheju National University, Jeju, Korea.
5. Department of Microbiology, College of Veterinary Medicine, Seoul National University, Seoul, Korea.