Joseph M. Makhema, M.D., center, co-director and senior research manager for the Botswana-Harvard AIDS Institute talks to medical students Beth Riviello, left, and Rob Mutter. Makhema traveled 8,000 miles to share “National Response to the HIV/AIDS Epidemic: The Botswana Experience” with faculty and medical students. Monday’s lecture was the kick-off of event of World Health Week, which is sponsored by the School of Medicine’s Committee on International Medical Education. More than 37 percent of Botswana’s population is infected with HIV, equally affecting the rural and urban, the educated and uneducated. Makhema shared how the Botswana-Harvard AIDS Institute is working to control the epidemic. Photo by Anne Rayner