1. Department of Malaria and Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea.
2. Department of AIDS, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea.
3. Department of Environmental and Tropical Medicine, Konkuk University School of Medicine, Seoul, Korea.
4. Department of Parasitology and Inha Research Institute for Medical Sciences, Inha University College of Medicine, Incheon, Korea.
5. Department of Enteric Bacterial Infections, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea.
6. Department of Enteric and Hepatitis Viruses, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea.
7. Department of Influenza and Respiratory Viruses, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea.