News & Perspective

Nov 04, 2011

Nov 04, 2011

Flu vaccine efficacy: Time to revise public messages?

(CIDRAP News) – For many years, public health personnel have cited the estimate of 70% to 90% when talking about the level of protection afforded by seasonal influenza vaccines. But last week's meta-analysis of flu vaccine studies in The Lancet Infectious Diseases—along with several other studies in recent years—has raised the question of whether it's time to change the message about flu vaccines.