The reporting requirements for COVID-19 vaccines are the same for those authorized under emergency use (EUA) or approved under Biologics License Application (BLA). Healthcare providers who administer COVID-19 vaccines are required to report the following to VAERS:
Vaccine administration errors, whether or not associated with an adverse event (AE):
1) If the incorrect mRNA COVID-19 vaccine product was inadvertently administered for a second dose in a 2-dose series, VAERS reporting is required.
2) If a different product from the primary series is inadvertently administered for the additional or booster (third dose), VAERS reporting is required.
VAERS reporting is not required for the following situations:
If a mixed series is given intentionally (e.g., due to hypersensitivity to a vaccine ingredient)
Mixing and matching of booster doses (as of October 21, 2021, mixing and matching of booster doses is allowed)