Robin Hultgren receives an H1N1 vaccination during a drive thru ...
AFP/Getty Images/File
Thu Dec 17, 1:47 PM ET
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Robin Hultgren receives an H1N1 vaccination during a drive thru H1N1 vaccination clinic at Doctor's Medical Center November 5 in San Pablo, California. A strain of natural human proteins have been found to help ward off swine flu and other viruses including West Nile and dengue, in a discovery that could spur more effective treatments, US researchers said Thursday.

(AFP/Getty Images/File/Justin Sullivan)

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