1. School of Tropical Medicine and Global Health; Nagasaki University; Nagasaki Japan
2. Department of Clinical Research, Faculty of Infectious and Tropical Diseases; London School of Hygiene & Tropical Medicine; London UK
3. Department of Clinical Medicine; Institute of Tropical Medicine, Nagasaki University; Nagasaki Japan
4. Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases; Graduate School of Biomedical Sciences, Nagasaki University; Nagasaki Japan
5. Institut National de Recherche Biomedicale (INRB); Kinshasa DRC
6. Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health; London School of Hygiene & Tropical Medicine; London UK
7. Department of Preventive Medicine and Biometrics; Uniformed Services University; Bethesda MD USA