Home A government sponsored poster warning of the spread of the flu is posted in an office building September 16, 2009 in New York City. A government sponsored poster warning of the spread of the flu is posted in an office building September 16, 2009 in New York City.

A government sponsored poster warning of the spread of the flu is posted in an office building September 16, 2009 in New York City.

NEW YORK – SEPTEMBER 16: A government sponsored poster warning of the spread of the flu is posted in an office building September 16, 2009 in New York City. Some experts predict that Swine flu may infect 30 to 50 percent of the U.S. population and has already infected up to one million New Yorkers. (Photo by Mario Tama/Getty Images)

New York Public Information Campaign Warns of Swine Flu