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Image description: A U.S. Food and Drug Administration (FDA)...

Posted Jan 24 2013 3:00pm


Image description: A U.S. Food and Drug Administration (FDA) laboratory worker injects an influenza virus into an egg, where it will grow before being harvested—one of the many complex steps involved in creating a traditional flu vaccine. Learn more about the evolution, and revolution, of flu vaccines .

Photo from the FDA

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