Why You Need a Flu Shot Every Year: TIME Explains

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Creating the annual flu vaccine involves marrying chicken eggs and a wily influenza virus that is among the fastest-changing bugs around. That’s why researchers are adding new flu strains to the annual shot, and giving us more ways to get immunized — and stay protected against influenza’s aches, fevers, sneezes and sniffles.

2 comments
bmacs
bmacs

Good video that made sense of the flu situation!

notbobsaget
notbobsaget

a bunch of crap, selling a corporate product.