Here's why it's so hard to make a better flu vaccine

Here's why it's so hard to make a better flu vaccine  NBCNews.com Research finds why flu vaccine works better in some people than others  Herald Sun New hope for better flu vaccines  NEWS.com.au Focus on the flu, not the new  USA TODAYFull coverage

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Here's why it's so hard to make a better flu vaccine published February 15, 2018 at 03:57AM. Original Source Link : https://www.nbcnews.com/health/health-news/here-s-why-it-s-so-hard-make-better-flu-n848081

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