1. School of Life Science and Technology Tokyo Institute of Technology Tokyo Japan
2. College of Science Ibaraki University Ibaraki Japan
3. Center for Clinical Sciences National Center for Global Health and Medicine Tokyo Japan
4. Department of Hematology, Rheumatology and Infectious Disease Kumamoto University Hospital Kumamoto Japan
5. Department of Animal Science Faculty of Agriculture Tokyo University of Agriculture Kanagawa Japan
6. Microbe Division/Japan Collection of Microorganisms RIKEN BioResource Research Center Ibaraki Japan