Prof. Shlomo Maayan, Head of Hadassah’s AIDS Center, has joined a team of researchers from Australia’s Perth University to help combat AIDS in Africa. He will be working under a program of the Bill and Melinda Gates Foundation, which has pledged to donate 287 million dollars over the next five years toward the development of an AIDS vaccine. The team will administer an experimental vaccine to members of the African population, based on their particular genetic backgrounds, with the hope of reducing infection within the population.