1Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
2Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
3Virology Section, Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
4Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
5Department of Urology, Graduate School of Medicine, Gifu University, Gifu, Japan
6Department of Infectious Disease Epidemiology, Imperial College, London, UK
†Present address: Faculty of Veterinary Medicine, Okayama University of Science, 1-3, Ikoinooka, Imabari, Ehime 794-8555, Japan.
✉*Correspondence: Koji Yahara, k-yahara@nih.go.jp
*Xavier Didelot, xavier.didelot@gmail.com
*Makoto Ohnishi, ohnishi7@niid.go.jp
© 2018 The Authors
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