You may have heard that this year's flu shot is less effective than normal. That's a scary prospect heading into the heart of flu season. But what exactly does that mean? Why would vaccines vary in effectiveness ...
Dec 15, 2014
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(HealthDay)—Fewer than half of Americans have gotten a flu shot so far this flu season, which might be a bad sign for a season that could be potentially severe, infectious-disease experts said Thursday.
Dec 11, 2014
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