Does my COVID-19 booster or additional dose have to be the same brand that I got before?
No, you can mix and match brands. The FDA has authorized three vaccine boosters — Pfizer-BioNTech, Moderna and Janssen-Johnson & Johnson — and determined that it is safe to get a COVID-19 vaccine booster or additional dose that is a different brand than your initial dose or doses.
The Pfizer-BioNTech vaccine and booster are the only ones authorized for children and teens ages 12–17.
If you get the Moderna booster, you will receive half of the original Moderna dose. Please be sure to confirm this with the person giving you the shot.