LONDON, ENGLAND - DECEMBER 13: A woman wears a surgical face mask as she takes a photograph in Trafalgar Square on December 13, 2010 in London, England. Britain's Health Protection Agency has warned ... more 
LONDON, ENGLAND - DECEMBER 13: A woman wears a surgical face mask as she takes a photograph in Trafalgar Square on December 13, 2010 in London, England. Britain's Health Protection Agency has warned of the increasing spread of the H1N1 virus, also known as 'Swine Flu', with 10 deaths of people suffering from the virus in the past six weeks. (Photo by Oli Scarff/Getty Images) less 
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Getty Images | Photo By Oli Scarff / Getty Images
Mon, Dec 13, 2010 2:13 PM EST