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New 4-in-1 flu vaccine debuts

This season's new quadrivalent flu vaccine covers four strains of the flu virus. Previous vaccines only covered three strains.

http://www.wbir.com/video/2651575546001/39627146001/New-4-in-1-flu-vaccine-debuts http://bcdownload.gannett.edgesuite.net/kare/35140830001/201309/3944/35140830001_2650583978001_thumbnail-for-video-2645509364001.jpg?pubId=35140830001 New 4-in-1 flu vaccine debuts This season's new quadrivalent flu vaccine covers four strains of the flu virus. Previous vaccines only covered three strains. KAREwbirnationallocalNewstopmobile 01:21

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