Why Do We Need A New Flu Shot Every Year?

Every year doctors recommend getting a flu shot to protect you from the influenza virus, but scientists might be closer to finding a universal vaccine. Can we cure the flu?

How The Flu Shot Works ►►►► http://dne.ws/1JK1m9T

Read More:
Universal Flu Vaccine Comes Closer, Scientists Say
http://www.bbc.com/news/health-34038808
“Researchers say they are closer to developing a vaccine to give life-long protection against any type of flu, after promising trials in animals.”

Virus-like particle vaccine protects mice from many flu strains
http://www.sciencedaily.com/releases/2015/07/150721102745.htm
“A new study shows that scientists may be able to create a 'universal' vaccine that can provide broad protection against numerous influenza strains, including those that could cause future pandemics.”
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