Chinese travellers wear masks to ward off Severe Acute Respiratory Syndrome (SARS (news - web sites)) at the departure lounge in Beijing Capital Airport, April 22, 2003. An increasing number of people are leaving China's capital after the disclosure by the government of the outbreak of SARS. Nearly half of the world's cases of SARS have occurred in China, where official statistics show that 97 people have died and more than 2,158 have been infected by the disease as of April 22. Photo by Andrew