![Dr. Roger Glass](https://webarchive.library.unt.edu/web/20130226083708im_/http://blog.aids.gov/wp-content/uploads/Roger_Glass-150x120.jpg)
Twenty-five years ago, we were horrified to see the toll HIV/AIDS was taking in the developing world. Not only did it wipe out nearly a generation of adults in sub-Saharan Africa, it also killed countless children and left many more orphans. After several decades of improving indicators of health, life expectancy in sub-Saharan Africa began…