What You Need to Know
The American College of Obstetricians and Gynecologists (ACOG) now recommends that all pregnant and recently pregnant individuals receive a COVID-19 booster shot when they are eligible.
- Monovalent mRNA COVID-19 vaccines are no longer authorized for use as a booster.
- Bivalent mRNA COVID-19 vaccines are the default for booster vaccination. However, Novavax’s monovalent COVID-19 vaccine is allowable for use as a booster (not primary vaccination) when a person has not yet received any booster dose and:
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is unable to get a bivalent mRNA COVID-19 vaccine, or
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is unwilling to get a bivalent mRNA COVID-19 vaccine.
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- Bivalent mRNA COVID-19 vaccines are only authorized for use as boosters. They are not authorized for use as primary doses at this time. Individuals must complete their primary monovalent COVID-19 vaccine series before receiving a bivalent mRNA COVID-19 booster.
- Booster vaccination may occur in any trimester, and emphasis should be on vaccine receipt as soon as possible to maximize maternal and fetal health.