作者单位:Department of Microbiology, Fukushima Medical University School of Medicine, Fukushima 960-1295 Leprosy Research Center and National Institute of Infectious Diseases, 4-2-1 Aoba-cho, Higashimurayama, Tokyo 189-0002, Japan[1]Department of Microbiology, Fukushima Medical University School of Medicine, Fukushima 960-1295[2]