Moderna, J&J booster shots officially approved by FDA, mix and match also a go

The FDA also gave the go-ahead for mixing and matching vaccines, meaning someone who got a single dose Johnson & Johnson shot in April would now be eligible for a Pfizer booster, and vice versa.

The Food and Drug Administration (FDA) amended its emergency use authorization for COVID-19 vaccines on Wednesday to allow for mix-and-match boosters for patients who initially received a different vaccine.

The FDA’s move supporting mixed vaccine doses follows a preprint study from the National Institutes of Health that found that mixing and matching any of the three vaccines authorized in the U.S. vaccines was safe and effective.