1. Veterinary Internal Medicine, Research Institute and BK21 Program for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea.
2. Division of Arboviruses, Center for Immunology and Pathology, Korea National Institute of Health, Seoul 122-701, Korea.
3. 5th Medical Detachment, 168th Multifunctional Medical Battalion, 65th Medical Brigade, Unit #15247, APO AP 96205-5247, Seoul, Korea.
4. Force Health Protection and Preventive Medicine, 65th Medical Brigade, Unit #15281, APO AP 96205-5281, Seoul, Korea.
5. Defense Logistics Agency, 8725 John J. Kingman Road, Suite 2639 Attn: DES-EQ, Fort Belvoir, VA 22060-6221, USA.