US experts concerned about efficacy of flu vaccine this year
https://www.upi.com/Health_News/2017/12/01/US-experts-concerned-about-efficacy-of-flu-vaccine-this-year/5181512141456/?utm_source=fp&utm_campaign=ls&utm_medium=4 Source Cited: www.upi.com Sign in to see full entry.
![Associated Content](http://www.associatedcontent.com/user/8835/mandaleesrc="http://www.associatedcontent.com/images/house_ads/cp-sp6.gif" border="0"></a>){kind=link}