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Photo by: Richard Drew

FILE - In this May 18, 2009 photo, former New York City Health Commissioner Thomas Frieden, right, addresses a City Hall news conference on the swine flu outbreak with New York Mayor Michael Bloomberg, in New York. Now director of the CDC, Frieden has chosen six priorities _ winnable battles, he calls them. The six public health problems are smoking, AIDS, obesity/nutrition, teen pregnancy, auto injuries and health care infections. (AP Photo/Richard Drew, File)

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