Immunization During Pregnancy

Maternal Vaccine Recommendations

The following vaccines are recommended during pregnancy by the CDC and the American College of Obstetricians and Gynecologists (ACOG):

Influenza (Flu) Vaccine

  • Recommended once during pregnancy for all women, in any trimester, during flu season (September 1–March 30).

  • Infants cannot receive influenza vaccination until 6 months of age; maternal vaccination provides passive protection during this period.

parental care-1

RSV Vaccine

  • Recommended during RSV season (September 1–January 31) if the patient is 32 0/7 through 36 6/7 weeks gestation.

  • Maternal immunization provides passive antibody transfer, reducing the risk of severe RSV disease in infants.

  • Vaccination is ideally administered between 35 0/7 and 36 6/7 weeks gestation, as recommended by Nurture Women’s Health, to optimize antibody transfer and minimize theoretical risk of preterm labor.

  • Not recommended ≥37 0/7 weeks, due to insufficient time for antibody development and transfer.

Tdap Vaccine

  • Recommended from 27 0/7 – 36 6/7 weeks

  • Provides maternal antibody production against tetanus, diphtheria, and pertussis; antibodies are transferred to the fetus and continued through breastfeeding.

Administration

All vaccines should be obtained through local pharmacies. Prescriptions are generally not required.

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