About the Authors
The authors declare that they are employees of the Global Fund to Fight AIDS, Tuberculosis and Malaria, but have no additional conflicts of interest. The contents of this article do not necessarily represent the views of the Global Fund.
DLB, HA, RK, PB, IK, JC, and BS designed the study. DLB, HA, RK, PB, MS, IK, and PS analyzed data. DLB wrote the paper with contributions from HA, RK, PB, MS, PS, RTBH, and BS.