Pfizer and BioNTech became the first vaccine maker to evaluate their COVID-19 vaccine in pregnant women whenTheir vaccine, along with Moderna's, are the two mRNA vaccines currently available in the United States after being granted Emergency Use Authorization by the Food and Drug Administration.Thein clinical trials, uses an inactive version of another virus -- one that causes the common cold -- to deliver genetic information to cells.
They are the first mRNA vaccines, which are theoretically safe during pregnancy, because they do not contain a live virus., Ad26, that cannot replicate. The Ad26 vector carries a piece of DNA with instructions to make the SARS-CoV-2 spike protein that triggers an immune response. The CDC has concluded that pregnant people can receive the Johnson & Johnson one-shot vaccine after reviewing more than 200 pages of data provided by the company and the U.S. Food and Drug Administration .
in March found the Pfizer and Moderna vaccines are safe and effective in pregnant and lactating people and those people are able to pass protective antibodies to their newborns.