Which statement correctly describes postpartum rubella vaccination when the patient is non-immune?

• A. Rubella vaccination should be avoided entirely in the postpartum period.
• B. Vaccination should occur during pregnancy.
• C. Rubella non-immune status requires vaccination postpartum; avoid pregnancy for 4 weeks after MMR vaccination.
• D. No vaccination is needed if rubella status is unknown.

Answer: (C)

Postpartum vaccination is the moment to protect future pregnancies when a woman is non-immune to rubella. The rubella vaccine is live-attenuated, so it isn’t given during pregnancy because of fetal safety concerns. After delivery, administering the MMR vaccine helps establish immunity before the woman could conceive again, reducing the risk of congenital rubella syndrome in future pregnancies. Because the vaccine is live, a precaution is needed: avoid pregnancy for 4 weeks after vaccination to ensure the immune response can develop and to prevent potential exposure if pregnancy begins soon after. Breastfeeding is not a contraindication to vaccination, and if rubella immunity is unknown, testing guides whether vaccination is needed postpartum.