Researchers from the American Centers for Disease Control and Prevention (CDC) believe that this protection comes in particular from a transfer of antibodies against the virus between a pregnant mother and her baby, via the placenta.
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Babies born to mothers vaccinated during pregnancy are around 60% less likely to be hospitalized with Covid-19, according to a new American study published on Tuesday February 15.
The researchers believe that this protection comes in particular from a transfer of antibodies against the virus between a pregnant mother and her baby, via the placenta.
The Centers for Disease Control and Prevention (CDC) conducted a study including babies up to six months old, hospitalized between July 2021 and January 2022.
The effectiveness of vaccinating mothers during pregnancy in preventing hospitalization of babies after birth was found to be 61%. The mother of the only baby who died during the study was not vaccinated. And 84% of babies hospitalized with Covid-19 were born to unvaccinated mothers.
The study did not take into account women who had been vaccinated before pregnancy. Only those who received, during their pregnancy, either the two doses or their second dose of the vaccine from Pfizer or Moderna were included.
“In summary, maternal vaccination is a very important way to help protect these young babies,” CDC researcher Dana Meaney-Delman said at a press briefing.