1. Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
2. Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
3. Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan
4. Graduate School of Control Sciences, Kitasato University, Tokyo, Japan
5. School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan
6. Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan