CDC: Influenza vaccine 48 percent effective overall

February 20, 2017

(HealthDay)—This year's influenza vaccine is a fairly good match for the circulating viruses, according to research published in the Feb. 17 issue of the U.S. Centers for Disease Control and Prevention's Morbidity and Mortality Weekly Report.

These findings were based on data from 3,144 children and adults with seen during Nov. 28, 2016, to Feb. 4, 2017, at five sites with outpatient clinics in the United States.

Overall, the vaccine is 48 percent effective. For the predominant circulating influenza A type H3N2 flu strain, its effectiveness comes in at 43 percent. It's 73 percent effective against influenza B viruses, according to the CDC.

"The effectiveness is a little bit lower than we would like to see, but it's similar to what we have seen for H3 viruses when the vaccine is a good match for what's circulating," Brendan Flannery, Ph.D., an epidemiologist at the CDC, told HealthDay.

Explore further: Pace of influenza activity picking up across the US

More information: More Information

Related Stories

Pace of influenza activity picking up across the US

January 15, 2017
(HealthDay)—The pace of flu activity continues to quicken across the United States, and probably hasn't peaked yet, according to an assessment by the U.S. Centers for Disease Control and Prevention.

CDC tweaking flu vaccine for better protection

June 5, 2015
(HealthDay)—Having acknowledged that the 2014-2015 flu vaccine was mismatched to the circulating influenza strains, U.S. health officials have ramped up next season's shots for broader protection.

Flu hospitalizations, deaths increasing: CDC

January 27, 2017
(HealthDay)— Although this year's flu season appears to be an average one so far, more hospitalizations are being reported and deaths are increasing, federal health officials reported Friday.

Little U.S. flu activity so far, CDC says

October 4, 2012
(HealthDay)—Flu activity in the United States remains at low levels, federal health officials said Thursday.

There's still time for your flu shot

December 23, 2016
(HealthDay)—Flu needn't spoil the start of the new year, say U.S. health officials who urge children and adults to get vaccinated.

Flu shots are worth it

December 28, 2016
(HealthDay)—The flu can be a serious threat to your health, but you can protect yourself by getting a flu shot, health experts say.

Recommended for you

Anxious women may want to keep an eye on their bone health

May 18, 2018
(HealthDay)—As if older women didn't already worry enough about their bone health, new research suggests that anxiety may up their risk for fractures.

FDA approves first drug aimed at preventing migraines

May 18, 2018
(HealthDay)—The millions of Americans who suffer from migraine may have a new source of hope—the first drug aimed at preventing the headaches gained U.S. Food and Drug Administration approval on Thursday.

New strategy to cure chronic hepatitis B infection

May 18, 2018
Scientists from Karolinska Institutet and Hannover Medical School have published two studies that provide insights into how the immune system responds and helps to clear a hepatitis B infection after treatment interruption. ...

Resistance to antifungal drugs could lead to disease and global food shortages

May 17, 2018
Growing levels of resistance to antifungal treatments could lead to increased disease outbreaks and affect food security around the world.

Pig immunology comes of age: Killer T cell responses to influenza

May 17, 2018
Researchers from The Pirbright Institute, University of Bristol, Cardiff University and University of Oxford have generated tools that allow scientists to understand a vital area of the pig immune system which was previously ...

How intestinal worms hinder tuberculosis vaccination

May 17, 2018
New research in mice suggests that chronic infection with intestinal worms indirectly reduces the number of cells in lymph nodes near the skin, inhibiting the immune system's response to the Bacille Calmette-Guerin (BCG) ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.