Flu Vaccine How It Works

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Influenza, which is best known to us as simply the flu, is a viral infection that infects a lot of people every year. The CDC estimates that around 35,000 people in the US die from it each year. While most of those people already had a weakened immune system, the flu virus isn’t something to be messed with.

In 1918 a strain of the influenza virus killed an estimated 50 million people worldwide. Back then, they didn’t have vaccines. Most people just had to hope they didn’t catch the virus. Nowadays, vaccines are able to give us considerable protection against catching certain strains of the virus. In this Untamed Science short, Haley gives a quick introduction to flu vaccine basics.

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