Imagine a single dose of vaccine that prepares your body to fight every known strain of influenza — a so-called universal flu vaccine that could protect the country against future pandemics.

https://www.nytimes.com/2022/11/29/health/universal-flu-vaccine.html

One Step Closer to a Universal Flu Vaccine?

Scientists have tested in animals a vaccine that may protect against 20 strains of influenza, helping to prevent another pandemic.

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