Africa, which has the highest number of HIV infections in the world, must scale up its prevention efforts to reverse this trend, according to the president of the African Union Commission, Alpha Oumar Konare. "The responsibility of HIV prevention is not the one of the World Health Organization [WHO] or of UNAIDS. It is ours - we all have to commit ourselves to that," Konare said. Konare was speaking on the occasion of the official launch of the year of "The Acceleration of Prevention of HIV Initiative in the African Region", an initiative of African health ministers aimed at stepping up the pace of HIV prevention on the continent.