Nasal mist flu vaccine ineffective, shouldn't be used next flu season, CDC says

A popular form of flu vaccine has been deemed ineffective by the Centers for Disease Control and Prevention.

The nasal spray form of the vaccine, known as FluMist, was found to be largely ineffective in children which in recent years. Despite the fact that the mist accounts for about one-third of all flu vaccines given to children, a CDC panel said it should not be used at all during the 2016-2017 season.

"We could find no evidence [the spray] was effective," Joseph Bresee, M.D., FAAP, a flu expert at the CDC, told the Associated Press. The panel's findings contradict early studies that found the spray to outperform traditional vaccines in preventing the flu.

Traditional flu vaccines are still effective and recommended for everyone ages 6 months and older, the agency stressed.