1. Vanderbilt Institute for Global Health; Vanderbilt University Medical Center; Nashville TN USA
2. Division of Pediatric Infectious Diseases; Department of Pediatrics; Vanderbilt University Medical Center; Nashville TN USA
3. Department of Public Health Sciences; School of Medicine and Dentistry; University of Rochester; Rochester NY USA
4. College of Charleston; Charleston SC USA
5. Meharry Medical College; Nashville TN USA
6. Yale School of Public Health; Yale University; New Haven CT USA