A–Z Glossary

Transplacental antibody transfer

The passage of antibodies from the pregnant person to the baby before birth.

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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 […]

Flu Tdap and COVID-19 vaccines

Flu Tdap and COVID-19 vaccines

Why these vaccines matter in pregnancy Pregnancy alters respiratory physiology, immune signaling, and cardiovascular demand, which can make some infections harder to tolerate. That is one reason influenza and COVID-19 prevention are emphasized in prenatal care. Tdap matters for a different but equally important reason: it helps protect newborns from pertussis, also called whooping cough, […]