As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well, with one of its worst ...

Key Takeaways This season's flu vaccine didn't work as well as usual, officials sayA new virus strain did not match the shot ...

Vaccine effectiveness was 38 to 41 percent against influenza outpatient visits, 41 percent against flu-linked hospitalization for children younger than 18 years ...

The US FDA’s vaccine advisors have recommended that three new influenza strains be included in next winter’s influenza vaccine, aiming in part to tamp down illness caused by subclade K, a mutated form ...

Viral mismatch between circulating strains and vaccine may have weighed down effectiveness ...

An FDA advisory committee voted to recommend including a viral strain of the flu, subclade k, in vaccines beginning this fall.

India, March 15 -- For years, vaccine researchers have debated an important question: should vaccines mainly focus on ...

A long-running debate in vaccine design revolves around whether a vaccine should be optimized to prevent the virus from replicating inside an infected host or prevent the virus from transmitting to ...

FINGER LAKES, N.Y. — As flu season comes to a close, health officials reported that this year’s vaccine was not very effective. News10NBC covered the high flu rates across the Finger Lakes region.