Impact of Covid-19 vaccination during pregnancy

In this large cohort study, conducted in Sweden and Norway between 2021 and 2023, researchers assessed the risk of neonatal adverse events following vaccination of pregnant women against Covid-19 with mRNA vaccines. A total of 196,470 newborns were analyzed. These children had no increased risk of adverse neonatal problems. They even had reduced risks of non-traumatic neonatal intracranial hemorrhage, hypoxic-ischemic encephalopathy and neonatal mortality. Subgroup analyses (according to vaccination context, according to health status of the newborn and according to the vaccine used) confirmed the link between Covid-19 vaccination during pregnancy and a reduction in neonatal mortality.