Academy award winner and HIV/AIDS campaigner U.S. actress Charlize Theron gets photographed for the Global Fund's Big Push campaign by the Global Economic Forum in Davos January 22, 2013. The Big Push is a campaign to fight AIDS, Tuberculosis and Malaria. The annual World Economic Forum (WEF) is held from January 23 to 27, 2013 in Davos. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS BUSINESS ENTERTAINMENT)