Y Terada et al., JVI, Revised Ver. 1 1 Establishment of a virulent full-length cDNA clone for type I feline coronavirus 1 strain C3663 2 3 Yutaka Teradaa,b, Yudai Kurodab, Shigeru Morikawac, Yoshiharu Matsuurad, Ken 4 Maedab,c and Wataru Kamitania# 5 6 aLaboratory of Clinical Research on Infectious Diseases, Research Institute for 7 Microbial Diseases, Osaka University, Osaka, Japan 8 bLaboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, 9 Yamaguchi University, Yamaguchi, Japan 10 cDepartment of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 11 Japan. 12 dDepartment of Molecular Virology, Research Institute for Microbial Diseases, Osaka 13 University, Osaka, Japan 14 15 Running Head: Infectious cDNA clone of virulent type I FCoV 16 17 18 #Address correspondence to Wataru Kamitani, DVM, PhD, 19