1 Department of Public Health and Community Medicine and Center for Global Public Health, Tufts University School of Medicine, Boston, Massachusetts, USA ramnath.subbaraman@tufts.edu.
2 Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, Massachusetts, USA.
3 Division of Infectious Diseases, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
4 Departments of Biostatistics, Epidemiology, and Global Public Health, University of Michigan, Ann Arbor, Michigan, USA.
5 Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
6 Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
7 YR Gaitonde Centre for AIDS Research and Education (YRGCARE), Chennai, Tamil Nadu, India.