About the Authors

Taketoshi Iwata

Affiliation Bacterial and Parasitic Disease Research Division, National Institute of Animal Health, Tsukuba, Ibaraki, Japan

Kazuhiro Chiku

Affiliation Analytical Science Division, National Food Research Institute, Tsukuba, Ibaraki, Japan

Ken-ichi Amano

Affiliation Bioscience Research Education Center, Akita University, Akita, Akita, Japan

Masahiro Kusumoto

Affiliation Bacterial and Parasitic Disease Research Division, National Institute of Animal Health, Tsukuba, Ibaraki, Japan

Mayumi Ohnishi-Kameyama

Affiliation Analytical Science Division, National Food Research Institute, Tsukuba, Ibaraki, Japan

Hiroshi Ono

Affiliation Analytical Science Division, National Food Research Institute, Tsukuba, Ibaraki, Japan

Masato Akiba

akiba@affrc.go.jp

Affiliations Bacterial and Parasitic Disease Research Division, National Institute of Animal Health, Tsukuba, Ibaraki, Japan, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TI MA. Performed the experiments: TI KC KA MO. Analyzed the data: TI KC MO MK MA. Contributed reagents/materials/analysis tools: KA MO HO MA. Wrote the paper: TI KC MA.