COVID-19 vaccine

Anti-vaccine advocates have repurposed a catchy, succinct, and potent slogan. Its unlikely source: the reproductive rights movement, which has been linked to the phrase for more than 50 years.

With immunity waning and the super-contagious omicron family of variants getting better at dodging protection, the Food and Drug Administration decided boosters intended for fall needed an update.

NPR talks to Claire Hannan, who has helped navigate vaccine rollouts in all 50 states, about some of the challenges involved in quickly getting shots out to millions of young kids.

The vaccinations for children as young as 6 months old could start next week. But first, the Centers for Disease Control and Prevention must sign off.

The Novavax vaccine appears to be about 90% effective at preventing mild, moderate and severe COVID-19, Food and Drug Administration scientists say in an analysis of the company's data.

Though findings are preliminary, many studies suggest that vaccinated people have good protection against the condition, although just how much is still up for debate.

If approved, this would be the second booster shot Moderna has issued for people ages 18 and up.