The COVID-19 vaccines authorized and approved in the United States remain highly effective, especially against severe illness and death. Booster shots help safely increase protection against infection and severe outcomes in fully vaccinated people.
The Centers for Disease Control and Prevention says everyone age 18 and older vaccinated at least 2 months ago with the Johnson and Johnson vaccine, or at least 5 months ago with Pfizer or Moderna should get a booster with any of the COVID-19 vaccines available in the United States.
If you received vaccines on the WHO’s Emergency Use Listing (EUL) and are at least 18 years old, you should receive a booster of the Pfizer vaccine 5 months after completing your initial dose series.
The Centers for Disease Control and Prevention and the Wisconsin Department of Health Services recommend that certain people get a second booster shot four months after their first booster. Evidence shows that this second booster offers better protection for people who are at increased risk of severe outcomes. Second boosters should be an mRNA vaccine and are recommended for:
- People 50 and older;
- People 18 and older who received Johnson and Johnson as their first dose and their booster;
- People 12 and older who are moderately to severely immunocompromised (for example, due to cancer treatment, HIV infection, organ transplant, or a medical condition like DiGeorge syndrome).
Learn more and schedule an appointment. Information about boosters and additional doses is changing quickly. Talk to your health care provider if you have questions. Note that boosters are different from the additional doses recommended for immunocompromised people. Learn the difference between a third dose and a booster.