February 27, 2015
In a unanimous decision, the CDC’s Advisory Committee on Immunization Practices supported the recommendation that all people aged 6 months and older be vaccinated annually against influenza; however, the committee will no longer recommend a preference for nasal spray vaccine in healthy children aged 2 to 8 years.
Other data presented to the ACIP on Feb. 26 demonstrated that the 2014-2015 influenza vaccine was not effective against the predominant H3N2 viruses. The mid-point vaccine effectiveness (VE) estimate for inactivated influenza vaccine (IIV) was 15% (95% CI, –20 to 40) compared with –23% (95% CI, –90 to 21) for the live-attenuated influenza vaccine (LAIV), according to interim data from the U.S. Flu VE Network.