Sourav PanSeptember 4, 2024

Why is it not possible to develop a single flu vaccine?

Sourav PanSeptember 4, 2024

Answered

It is not possible to develop a single flu vaccine because influenza viruses constantly mutate and evolve, leading to frequent changes in their surface antigens (hemagglutinin and neuraminidase). This requires annual updates to the vaccine to match circulating strains.

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