1. Department of Microbiology School of Pharmacy, Aichi Gakuin University Nagoya Japan
2. Department of Food and Nutrition Faculty of Contemporary Human Life Science, Tezukayama University Nara Japan
3. Department of Bacteriology Osaka City University Graduate School of Medicine Osaka Japan
4. Department of Clinical Laboratory, Medical Hospital Tokyo Medical and Dental University Tokyo Japan
5. Department of Infection Control Science Faculty of Medicine, Juntendo University Tokyo Japan
6. Department of Medicine Sakakibara Heart Institute Tokyo Japan
7. Department of Infectious Diseases Tokyo Women's Medical University Tokyo Japan