Helene D. Gayle, M.D., M.P.H., is currently president and CEO of CARE USA, a member of CARE International (a leading humanitarian aid organization fighting global poverty). Before joining CARE USA in 2006, Dr. Gayle directed the HIV, TB, and Reproductive Health Program at the Bill & Melinda Gates Foundation and spent 20 years at the Centers for Disease Control and Prevention (CDC), focusing primarily onHIV/AIDS. Dr. Gayle also served as chair of the Obama administration’s Presidential Advisory Council on HIV/AIDS. She has been called one of the top female leaders and global thinkers in the world.