Vaccination during pregnancy protects both the mother and the unborn baby by transferring protective antibodies and reducing severe health risks [1, 2].

These findings are critical for maternal health because they address preventable complications that can lead to long-term health issues for both parents and infants. By reducing the risk of severe COVID-19 outcomes, vaccination provides a layer of early immunity to newborns before they can be vaccinated themselves [1, 3].

Research highlights a significant link between vaccination and the reduction of preeclampsia. In a study involving more than 6,500 mothers, data showed that vaccination helps mitigate this risk [2]. Conversely, unvaccinated individuals who contracted SARS-CoV-2 faced up to a 78% higher risk of developing preeclampsia [5].

Health officials have emphasized these benefits during World Immunization Week 2026 to encourage global uptake [6]. The strategy focuses on any trimester of pregnancy to maximize the transfer of antibodies to the fetus [1, 6].

Safety remains a primary concern for expectant parents. Data from studies in the U.S., Canada, and other multinational settings indicate that COVID-19 vaccination is not linked to preterm delivery or underweight newborns [4]. Researchers found no statistically significant association between the vaccine and these adverse birth outcomes [4].

This global effort aims to standardize prenatal care by integrating immunization as a core component of maternal health. By lowering the incidence of severe complications, health systems can reduce the burden of neonatal intensive care and maternal morbidity [1, 3].

“Vaccination during pregnancy protects both the mother and the unborn baby”

The evidence suggests that prenatal vaccination acts as a dual-purpose intervention, providing immediate maternal protection against preeclampsia and establishing neonatal immunity. By shifting the focus toward antibody transfer, global health organizations are attempting to close the immunity gap for newborns during their most vulnerable first months of life.