CDC: US flu shot less effective this season
This article was originally published in Scrip
Executive Summary
The Centers for Disease Control and Prevention (CDC) has warned doctors and the public that the influenza vaccines approved by the FDA for the 2014-15 season may only be 48% effective against the predominant strain circulating in the US – A (H3N2), which in past seasons has been linked to higher overall and age-specific hospitalization rates and more deaths.