This year's flu shots were the least effective in the past decade

[ahlam1399]

People who got their flu shots this year had lower risks of contracting influenza ? but vaccines have only been 36% effective.http://feeds.feedburner.com/~r/NydnRss/~4/91ZO2hanJ7k

أكثر... (http://feeds.nydailynews.com/~r/NydnRss/~3/91ZO2hanJ7k/year-flu-shots-effective-decade-article-1.3823291)