Flu vaccine less effective than originally thought

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

NEW YORK (AP) — As predicted, this year's flu vaccine is doing a pretty crummy job.

Health officials with the federal Centers for Disease Control and Prevention say a new study shows it's 23 percent effective.

That's one of the worst performances since the government started tracking how well vaccines work a decade ago. The best flu vaccines were 50 to 60 percent effective.

But this year, the vaccine doesn't include the specific virus that is making most people sick. Early in the season, officials warned the vaccine probably would not work very well.

The study results were released Thursday by the CDC, and focused on about 2,300 people in five states who were sick.

AlertMe
Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.