I was vaccinated in another country with a vaccine not offered in the U.S. Can I get a booster of Pfizer, Moderna or Johnson and Johnson?

If you received vaccines on the WHO’s emergency use listing and are 18 or older, you are eligible to receive a booster of the Pfizer vaccine 6 months after completing your initial dose series.

If you received vaccines on WHO’s emergency use listing, you are considered fully vaccinated by UW–Madison. If the vaccine you received is not on the WHO list, you can start an FDA-authorized or approved vaccine series with Pfizer, Moderna or Johnson and Johnson.