Abstract
Department of Biological Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan1
Department of Immunology, National Institute of Infectious Disease, Tokyo 113-8657, Japan2
Department of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan3
Central Laboratory, Kyoritu Shouji Co. Ltd, Ibaraki, Japan4