Fully Vaccinated Americans May Need COVID-19 Booster Shot by Fall
![Fully Vaccinated Americans May Need COVID-19 Booster Shot by Fall Fully Vaccinated Americans May Need COVID-19 Booster Shot by Fall](https://img.youtube.com/vi/-FgMWCeHRJU/maxresdefault.jpg)
Well, tonight nearly 40 percent of Americans are fully vaccinated against COVID-19. But we’re learning more tonight about how long that protection may last and when you’ll need a booster shot. Tonight, a COVID vaccine booster could be necessary by fall for people who are already fully vaccinated.