COVID-19 vaccine 3rd dose vs. booster — what's the difference?
For the COVID-19 vaccine, the terms booster shot and third dose seem to be used interchangeably. But there is a difference.
Here’s what you need to know:
Valley is offering an initial two-dose round of the Pfizer vaccine, a third Pfizer vaccine dose for immunocompromised patients 12 and older, and a booster Pfizer dose for those who have been deemed eligible by the CDC.