Researchers working on universal flu vaccine
Syracuse (WSYR-TV) - Unlike vaccines for other diseases that are usually effective for several years, a flu shot is only good for one season against a particular strain of influenza.
The next year you have to do it all over again.
But researchers at the University of Oxford are working to develop a vaccine that will target any type of influenza virus and make an annual shot unnecessary.
Imagine a "universal flu vaccine" you would get two shots when you're young, and then boosters later in life.
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