The Center for Global Health Policy’s “Science Speaks” blog examines a study (.pdf) published recently in the Journal of Infectious Diseases that used mathematical analysis to show “[a]ntiretroviral treatment has provided South African HIV patients 2.8 million years of life from 2004 to 2012, and could provide as much as 28 million years of life otherwise unrealized by 2030.” The blog also discusses an accompanying commentary that “highlights the potential for treatment as prevention and other advances to further advance recognition of how essential continued investment in global health remains” (Barton, 12/6).