A thermal scanner shows an image of a Malaysian health officer wearing a face mask assisting passengers also wearing face masks at Kuala Lumpur International Airport in Sepang May 2, 2009. The World Health Organisation said on Saturday that 15 countries have reported 615 infections with the new flu virus influenza A (H1N1), widely known as swine flu. REUTERS/Bazuki Muhammad (MALAYSIA SOCIETY HEALTH TRAVEL)