1. Vanderbilt Institute for Global Health, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
2. Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
3. College of Nursing, New York University, New York, New York, USA
4. State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing, China
5. Beijing Center for Disease Control and Prevention, Beijing, China
6. Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA