A–Z Glossary

Passive immunity

Temporary protection passed from mother to baby through antibodies before the infant can receive many vaccines.

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Vaccinations during pregnancy overview

Vaccinations during pregnancy overview

Why vaccination matters in pregnancy Pregnancy changes immune function, cardiopulmonary demand, and the stakes of an otherwise routine infection. A respiratory virus, for example, may lead to more severe maternal illness, more clinic visits, dehydration, fever, or hospitalization than it would outside pregnancy. Preventing that illness is valuable in its own right, because maternal stability […]