A survey of more than 17,000 pregnant and lactating individuals who received the COVID-19 vaccine showed that the individuals did not experience symptoms any more severe than their non-pregnant counterparts.
The medicine study, published today in JAMA Network Open, showed “there were not any increased reactions in pregnant individuals beyond what is expected from a vaccine” said Dr. Eckert, a professor of obstetrics and gynecology at the University of Washington School of Medicine and the study’s senior author.
“We hope that this data will be another reassuring piece of information … about why pregnant individuals need to get vaccinated against COVID-19,” Eckert said.
“Not only is the vaccine safe, our research shows just how well the vaccine is tolerated in pregnant individuals—which is a common fear I hear from my patients. In contrast, we are continuing to learn more and more about just how dangerous COVID-19 infections are in pregnancy.”
The respondents comprised women who were pregnant (44%) or lactating (38%) and those who stated plans to get pregnant in the near future (15%).
The majority (62%) received the Pfizer vaccine and most of the participants resided in the United States. Respondents reported pain at the injection site (91%) and fatigue (31%), and a mean temperature of 100 degrees Fahrenheit after the shot. A small group (5-7%) reported a decrease in milk supply post-vaccination.
The study supports that women tolerate the vaccine well and that they should be included in clinical trials for other relevant vaccines, Eckert said.