Institution: | 1. Viral Infectious Diseases Unit, RIKEN, Wako, Saitama 351-0198, Japan;2. Laboratory of Animal Microbiology, Department of Microbial Biotechnology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 981-8555, Japan;3. Animal Research Center, Hokkaido Research Organization, Shintoku, Hokkaido 081-0038, Japan |