1. Department of Pathobiological Science and Technology, Graduate School of Medical Science, School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
2. Division of Infectious Diseases, School of Medicine, Faculty of Medicine, Tottori university, Yonago 683-8503, Japan
3. Division of Virology, Department of Microbiology and Immunology, School of Medicine, Faculty of Medicine, Tottori university, Yonago 683-8503, Japan
4. Division of Respiratory medicine and Rheumatology, Department of Multidisciplinary Internal Medicine, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan