Dr. Don Francis is an American epidemiologist known for his significant contributions to public health. He played a crucial role in the response to the HIV/AIDS epidemic in the 1980s and 1990s, working with the Centers for Disease Control and Prevention (CDC). His efforts helped shape strategies for prevention and treatment of the disease. In addition to his work on HIV/AIDS, Dr. Francis has been involved in various global health initiatives. He co-founded the Global Health Council and has worked on vaccine development and disease control efforts in different countries, emphasizing the importance of collaboration in tackling health challenges.