Still, many pregnant patients, reluctant to put any foreign substance in their bodies, want more long-term data and scientific evidence that the vaccines will not have an effect on the development of the fetus, said Dr. Adam Urato, a maternal-fetal medicine specialist in Framingham, Mass., who counsels patients about the vaccine.
“The one question my patients ask me all the time is, ‘Are we absolutely sure that these vaccines won’t affect my baby?’” he said.
Tista Banerjee, 32, who gave birth to twins at the end of June, said she chose not to be vaccinated until after her pregnancy.
“During pregnancy they say that if you don’t have to take external medicines, don’t, and that you should be particular about what you put in your body,” Ms. Banerjee said. The vaccine was still quite new in April when she was considering vaccination, she said, and she was fortunate that she…

