Seth Berkley

The campaign to end HIV/AIDS involves a raft of social and behavioral changes -- but as Seth Berkley knows, we'll never completely vanquish the disease until we have a vaccine. To move the needle, in 1996 Berkley, a medical doctor with a legendary globe-trotting career in international health, founded the International AIDS Vaccine Initiative (IAVI), a nonprofit that is working to develop preventive HIV vaccines by investing in HIV/AIDS vaccine research, development and testing. [+]