HIV3:.(L-R) Baylor College of Medicine Dr. Mark Kline and Dr. Edith Mohapi, talk with Sina Petlane, 16, Mathaba Petlane, 52, Mosito Tsosane, 6, and Masontaha Tsosane, 25, at the Baylor College of Medicine’s Children’s Clinical Centre of Excellence in Lesotho. Kline is the director of the Baylor International Pediatric AIDS Initiative. Mohapi is the director of the Lesotho clinic. Photo by Carlos Antonio Rios_ Houston Chronicle