UNITAID’s core principles...based on a new idea: the international air-ticket solidarity levy, a long-term, guaranteed and predictable resource with solid perspectives for growth...Innovative financing mechanism: The solidarity levy is paid when airplane tickets are purchased...To date, 14 countries have expressed their intention to implement the same type of levy: Brazil, Chile, Cyprus, Congo, Gabon, Ivory Coast, France, Jordan, Luxembourg, Madagascar, Mauritius, Nicaragua, Norway and the United Kingdom...[UNITAID is] to fight the three major diseases (HIV/AIDS, malaria and tuberculosis).