1. Duke Global Health Institute, Duke University, Durham, NC, USA
2. Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA
3. School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong Province, China
4. Global Health Research Center, Duke-Kunshan University, Kunshan, China
5. Emerging Infectious Diseases Program, Duke-NUS Medical School, Singapore