For some viruses, the protection we receive from a vaccine starts to wane over time. An additional dose of vaccine may be needed to boost your immune response and make sure you are protected from the virus.
Boosters are common for many vaccines including Tdap (tetanus, diphtheria, and pertussis).
Everyone ages 12+ can get a booster dose:
- Pfizer: At least 5 months after completing their primary COVID-19 vaccination series
- Moderna: At least 5 months after completing their primary COVID-19 vaccination series (ages 18+ only)
- Johnson & Johnson: 2 months after the single-dose (ages 18+ only)
You may choose any of the currently authorized vaccines for your booster dose.
The CDC recommends that people ages 5+ whose immune systems are moderately to severely compromised should receive an additional dose of mRNA COVID-19 vaccine 28 days after receiving their second shot.
Additional and booster doses are available at pharmacies and healthcare providers, mobile vaccine clinics, and Public Health clinics. You do not need to return to the same location for your second or booster dose.