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An influenza vaccine manufacturer has announced it is filing an Annual Strain Update with the US Food and Drug Administration (FDA) in the coming weeks due to advances in influenza vaccine technology.
Recent studies have blamed the egg-based vaccine production process for less effective flu shots. But flu vaccines made from the newer, cell-based technology didn't perform much better in seniors last year either, a new FDA report finds.
Recent studies have blamed the egg-based vaccine production process for less effective flu shots. But flu vaccines made from the newer, cell-based technology didn't perform much better in seniors last year either, a new FDA report finds.