1. Infection Control Team, Ehime University Hospital, Toon, Japan
2. Department of Clinical Laboratory, Ehime University Hospital, Toon, Japan
3. Department of Ophthalmology, Ehime University, Graduate School of Medicine, Toon, Japan
4. Department of Hematology, Clinical Immunology and Infectious Disease, Ehime University Graduate School of Medicine, Toon, Japan.
5. Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan