1. National Institute of Hygiene and Epidemiology
2. Department of Internal Medicine, Institute of Tropical Medicine, Nagasaki University
3. National Pediatric Hospital
4. Bach Mai Hospital
5. Socio-Environmental Medicine, Institute of Tropical Medicine, Nagasaki University
6. National Institute of Infectious Disease
7. Laboratory for Clinical Research on Infectious Diseases, International Research Center for Infectious Diseases Research, Institute for Microbial Diseases, Osaka University