IAVI: International AIDS Vaccine Initiative. A remarkable example of a global not-for-profit organization working to improve world health. IAVI's mission is to speed the search for a vaccine to prevent HIV infection and AIDS, focusing on developing countries. Founded in 1996 and operational in over 20 countries, IAVI and its network of scientific partners research and develop AIDS vaccine candidates. IAVI also works to assure that a vaccine will be globally accessible.