1. Division of Bacterial and Parasitic Diseases, National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan
2. Department of Microbiology, Kyoto University Graduate School of Medicine, Japan
3. Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
4. The United Graduate School of Veterinary Sciences, Gifu University, Japan
5. Groupe de Recherche sur les Maladies Infectieuses du Porc, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Quebec, Canada
6. Research Institute for Microbial Diseases, Thailand-Japan Collaboration Center for Emerging and Re-emerging Infections, Osaka University, Suita-Osaka, Japan