1. Department of Microbiology, Dongguk University College of Medicine, Gyeongju, Korea.
2. Department of Environmental Medical Biology and Arthropods of Medical Importance Resource Research Bank, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea.
3. Department of Parasitology and Tropical Medicine, Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.
4. Division of Infectious Diseases, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.