A vaccine that combines antigens from different flu strains could trigger a more protective immune response than a traditional influenza vaccine, wrote the U.S. National Institute of Health (NIH).
Published on January 14, 2025, the NIH says findings from a recent study indicate a new method could enhance the effectiveness of annual flu shots.
The NIH explained seasonal flu shots contain hemagglutinin (HA) molecules from various viral strains. But even when the strains in the vaccine exactly match those in circulation, the vaccines have limited efficacy.
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