1. Department of Human Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
2. National Sanatorium Hoshizuka-Keiaien, Kagoshima, Japan
3. Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
4. Hiroshima Environment and Health Association, Hiroshima, Japan
5. Kagoshima University Graduate School of Health Sciences, Kagoshima, Japan
6. Department of Microbiology, University of Tennessee, Knoxville, Tennessee 37996-0845