Torahiko Okubo

Laboratory of Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan

Yuika Tosaka

Laboratory of Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan

Toyotaka Sato

Laboratory of Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan

Masaru Usui

Laboratory of Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan

Chie Nakajima

Division of Global Epidemiology, Hokkaido University Research Center for Zoonosis Control, Sapporo, Japan

Yasuhiko Suzuki

Division of Global Epidemiology, Hokkaido University Research Center for Zoonosis Control, Sapporo, Japan

Satoshi Imura

National Institute of Polar Research, Tachikawa, Tokyo, Japan

Yutaka Tamura

Laboratory of Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan