This year's flu vaccine reduced the risk of hospitalization in the Southern Hemisphere but wasn't as effective as the one used in the prior season, a new CDC study found.

This year's flu shot lowers the chance of being hospitalized for flu by 35% among high-risk groups, data released by the Centers for Disease Control and Prevention (CDC) suggests.

Early estimates on the effectiveness of this year’s flu vaccines indicate they may be less effective at preventing hospitalization than in years past, based on data from South America, where the ...

New analysis warns that suboptimal clinical trial designs and overreliance on surrogate markers may allow less effective flu ...

Influenza significantly impacted adults aged 50 to 64 years and younger adults with chronic conditions, but risk can be reduced with RIV.

This year's flu vaccine significantly reduced the risk of hospitalization in the Southern Hemisphere but wasn't as effective as the vaccine used in the prior season, according to an early study ...

The Southern Hemisphere's flu season is winding down, and new data shows this year's flu shot was 34.5% effective in keeping folks there who got influenza from needing hospital care.