1. Department of Ophthalmology, Fukushima Medical University School of Medicine, Japan
2. Hobara Eye clinic, Japan
3. Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Japan
4. Kobayashi Pediatric Clinic, Japan
5. Tokushima Eye Clinic, Japan
6. Hatano Eye Clinic, Japan
7. Division of Microbiology, Tohoku Medical and Pharmaceutical University, Japan