Your eligibility for a booster dose depends on what vaccine you originally received (your primary series)
People who have received the J&J COVID-19 vaccine
All people who received the J&J vaccine for their primary series should get a single vaccine booster dose at least 2 months after their initial J&J dose.
This booster can be another J&J vaccine, it can be a Pfizer vaccine, or it can be a Moderna booster (half-dose) vaccine. Talk to your doctor if you have questions about what vaccine to get as a booster.
People who have received either Pfizer or Moderna vaccine for their primary series
- The following people should get a booster dose at least 6 months after their 2nd dose of their primary vaccine series:
- people aged 65 years and older
- people aged 18 years and older who live in long-term care settings
- people aged 50–64 years who have underlying medical conditions or who experience social and economic risks that place them at increased risk for COVID-19
- The following people may get a booster dose at least 6 months after their 2nd dose of their primary vaccine series, based on their individual benefits and risks:
- people aged 18–49 years with underlying medical conditions
- people aged 18–64 years at increased risk for COVID-19 exposure and transmission because of their occupational or institutional setting; this includes all essential workers*
If you have questions about the risks and benefits or whether a booster dose is right for you, talk with your doctor or healthcare provider.
*Examples of institutional settings include healthcare, schools, group homes, prisons, and shelters. The CDC currently defines occupations at increased risk for COVID-19 as:
- First responders (healthcare workers, firefighters, police, congregate care staff)
- Education staff (teachers, school staff, daycare workers)
- Food and agriculture workers
- Manufacturing workers
- Corrections workers
- U.S. Postal Service workers
- Public transit workers
- Grocery store workers
- When you go to the location, take proof of vaccination such as your CDC white card or digital vaccination record (see Vaccination Records webpage for details, including how to get your digital record) to show that you completed your initial series.
- At least 2 months ago if it was J&J/Janssen
- At least 6 months ago (Pfizer and Moderna).
- If you attend a site run by Public Health, you will be asked to sign a self-attestation form if you don’t have your vaccination verification: English | Español (Other languages)
For more information, visit the CDC webpage COVID-19 Vaccine Booster Shot.