1. Department of Clinical Medicine, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan;
2. Department of General Internal Medicine, Kameda Medical Center, Chiba, Japan;
3. Department of Clinical Tropical Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan;
4. Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan;
5. Department of Dermatology, Kameda Medical Center, Chiba, Japan;
6. Department of General Internal Medicine, Nagasaki Rosai Hospital, Sasebo, Nagasaki, Japan;
7. Chiba Prefectural Institute of Public Health, Chiba, Japan;
8. Mahara Institute of Medical Acarology, Tokushima, Japan;
9. Department of Medicine, Swiss Tropical and Public Health Institute, Basel, Switzerland,
10. Faculty of Medicine, University of Basel, Basel, Switzerland