COVID-19 vaccine not linked to preterm birth, CDC study finds

Women who got vaccinated against COVID-19 while pregnant do not have a greater risk of delivering their babies prematurely or having a baby who is smaller than usual, new CDC research shows. 

For the study, CDC researchers analyzed data on 46,079 pregnant women, 10,064 of whom received at least one COVID-19 shot between Dec. 15, 2020, and July 22, 2021. Most women received either Pfizer or Moderna's shot during their second or third trimester. 

In total, 6.6 percent of women delivered their babies prematurely, and 8.2 percent had babies who were small for their gestational age. Researchers found no difference in these rates between vaccinated and unvaccinated mothers. 

The study, published Jan. 4, is among the first to assess the health of babies born to women vaccinated during pregnancy, according to The New York Times. The new findings build on past CDC research showing vaccination during pregnancy does not increase the risk for miscarriage. 

 

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