1. Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan.
2. Department of Pediatrics and Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, Honolulu, Hawaii.
3. Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan.
4. Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, New Mexico.
5. State Research Center of Virology and Biotechnology “Vector,” Koltsovo, Russia.
6. Institute of Systematics and Ecology of Animals, Novosibirsk, Russia.
7. Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan.
8. Kawasaki City Institute for Public Health, Kanagawa, Japan.