1. Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA;
2. Division of Infectious Disease, College of Public Health, The Ohio State University, Columbus, OH, USA;
3. College of Medicine, The Ohio State University, Columbus, OH, USA;
4. College of Social Work, The Ohio State University, Columbus, OH, USA;
5. Department of Sociology, College of Arts and Sciences, The Ohio State University, Columbus, OH, USA;
6. Child Legacy International, Lilongwe, Malawi