Additional vaccine doses

Boosters are not available yet.


Booster doses (doses given after your complete vaccination) are not available at this time. Our priority right now is to get as many unvaccinated San Franciscans their first and second doses as soon as  possible.

We expect we will rollout boosters in phases, like we did for vaccines earlier this year. We will prioritize the most vulnerable San Franciscans. We will continue to collaborate with our health care and pharmacy partners.

Compromised immune systems

If you have a moderately or severely compromised immune system, you may benefit from an additional dose now. See if you meet the eligibility criteria. These criteria only apply to those who received a 2-dose series of Pfizer or Moderna. 

We ask that all eligible people first seek a third dose of the vaccine from a health care provider if you have one. If not, most vaccination sites can give additional doses. You will need to self-attest that you meet the specific criteria of health conditions. 

Additional doses can not be given sooner than 28 days after your last dose of Pfizer or Moderna.

Johnson & Johnson vaccine

If you got the Johnson & Johnson one dose COVID-19 vaccine, you are fully vaccinated. If you have talked to your healthcare provider and want to get a supplemental dose of Pfizer or Moderna, you may. 

To get an additional dose you must:

  • Discuss the risks and benefits with your healthcare provider
  • Self-attest you’ve consulted with your healthcare provider
  • Live or have gotten your Johnson & Johnson vaccine in San Francisco

List of SF Department of Public Health vaccine sites that can give supplemental doses:

  • AITC, Immunization and Travel Clinic
  • Zuckerberg SF General - Learning Center
  • Zuckerberg SF General - Pediatric Urgent Care (ages 12 and up)
  • Southeast Health Center
  • Maxine Hall Health Center
  • Mission- 24th & Capp UCSF/Unidos en Salud/BAPLS
  • Bayview Neighborhood Vaccine Site at 1800 Oakdale

Find out more about supplemental doses in the Health Advisory. 

Last updated September 02, 2021