FDA Panel Expands Flu Vaccine

The Wall Street Journal (online registration required):  A federal advisory panel on Wednesday signed off on adding an additional strain of influenza protection to some of next year's vaccines.

The change, which has been in the works for years, could better prepare the health system after this year's nasty flu season. For decades, influenza vaccines have been comprised of three different strains to protect people against the flu. Those vaccines won't immediately go away, but over time will be replaced by new four-strain, or quadrivalent, vaccines.

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