Covid-19: Research strengthens vaccine safety for pregnant women and children

Covid-19: Research strengthens vaccine safety for pregnant women and children

Research conducted by the Oswaldo Cruz Foundation (Fiocruz) has strengthened the scientific evidence that the CoronaVac and Pfizer COVID-19 vaccines are safe for pregnant women and children, regardless of the stage of pregnancy. The work is part of the Vigivac project It was published in the scientific journal International Journal of Epidemiologyfrom the University of Oxford, United Kingdom.

Researcher Manuel Barral, one of the signatories of the article, considers the work to be further evidence of the safety of using vaccines against Covid in this population group, which deserves special attention due to its immune properties. “Vaccinations [contra a covid] He stressed that “the products used in Brazil are effective and safe.”


Data shows that vaccination against COVID-19 does not increase the risk of adverse birth outcomes. No significant increase in the number of babies born prematurely, with low birth weight or small for gestational age, with an Apgar of less than five (Rapid Clinical Assessment of Neonates) or neonatal deaths was found.

In addition, a slight but consistent protection against preterm birth was found in women who received different vaccine platforms during the last trimester of pregnancy. These conclusions come from data on more than 17,000 live births in Rio de Janeiro in 2021, in partnership with the Rio de Janeiro City Council.

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