About the Authors

Yorihiro Nishimura

Affiliation Department of Virology II, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, Japan

Takaji Wakita

Affiliation Department of Virology II, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, Japan

Hiroyuki Shimizu

hshimizu@nih.go.jp

Affiliation Department of Virology II, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YN. Performed the experiments: YN. Analyzed the data: YN TW HS. Contributed reagents/materials/analysis tools: YN HS. Wrote the paper: YN TW HS.