CDC clarifies vaccine guidance for pregnant people

▶ Watch Video: CDC’s guidance on COVID-19 vaccine during pregnancy

The Centers for Disease Control and Prevention said Tuesday there is “growing evidence” about the safety of COVID-19 vaccines during pregnancy, and it reiterated its guidance on vaccinations for pregnant people, after it was asked to clarify a remark the CDC director made Friday about the recommendation.

“If facing decisions about whether to receive a COVID-19 vaccine while pregnant, people should consider risk of exposure to COVID-19, the increased risk of severe infection while pregnant, the known benefits of vaccination, and the limited but growing evidence about the safety of COVID-19 vaccine during pregnancy,” a CDC spokesperson said in a statement emailed to CBS News.

Speaking at a White House COVID-19 briefing on Friday, CDC head Dr. Rochelle Walensky said the “CDC recommends that pregnant people receive the COVID-19 vaccine,” citing a new study that found no evidence to suggest that the Pfizer and Moderna COVID-19 vaccines pose risk during pregnancy.

Walensky’s comment differed from the language published on the CDC’s website, which says, “Any of the currently authorized COVID-19 vaccines can be offered to people who are pregnant or breastfeeding.”

A CDC spokesperson told CBS News that the agency’s guidance for pregnant people had not changed from its March recommendation, which is that “pregnant people are eligible and can receive a COVID-19 vaccine” and clarified that the guidance “has always been and remains CDC’s recommendation.”

When asked again about Walensky’s comment and whether the CDC recommends the vaccine during pregnancy, the CDC said:

Dr. Walensky was conveying that CDC recommends pregnant people be offered the vaccine. In her remarks, she went on to say that pregnant people should consult with their healthcare provider when considering vaccination.

This isn’t out step with what’s posted on the website which states: pregnant women may choose to receive a COVID-19 vaccine. And they may want to have a conversation with their healthcare provider to help decide whether to get vaccinated with a vaccine that has been authorized for use under Emergency Use Authorization.

More than 100,000 pregnant people in the U.S. have now reported receiving a COVID-19 vaccine, according to updated CDC figures published Tuesday.

Walensky’s comments at the briefing Friday followed the publication of a peer-reviewed paper in The New England Journal of Medicine. In the report, researchers from the CDC used self-reported data from more than 35,691 people who were either pregnant or soon to become pregnant. After getting the shot, they reported typical vaccine side effects — pain at the injection site, fatigue, headaches and muscle aches — but researchers say the data “did not show obvious safety signals.”

The results were an extension of a study presented by the CDC’s Advisory Committee on Immunization Practices last month, which also found no safety concerns during pregnancy.

The CDC’s website says that “based on how these vaccines work in the body, experts believe they are unlikely to pose a specific risk for people who are pregnant,” while acknowledging that limited data existed on the safety of the COVID-19 vaccine among pregnant people.

The results of the study published Wednesday add to mounting evidence that suggests the vaccine is as safe for pregnant patients as it is for non-pregnant individuals. The American College of Obstetrics and Gynecologists, a leading professional medical organization, recommends that COVID-19 vaccines not be withheld from pregnant or breastfeeding patients.


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COVID-19 vaccine trials in pregnant women

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Pregnant people are particularly vulnerable to more severe illness from COVID-19. According to data published by the CDC, those who contract the virus during pregnancy are more likely to be hospitalized and face a higher risk of death.

Wednesday’s paper used data collected through three methods: V-safe, a CDC-sponsored program that collects vaccine side effect data using smartphones; the v-safe pregnancy registry; and Vaccine Adverse Event Reporting System (VAERS), a longstanding joint surveillance effort between the CDC and the Food and Drug Administration that collects adverse vaccine reports. All of the data used in the research was self-reported.

According to the study’s results, pregnant patients reported pain at the vaccine’s injection site at a slightly higher rate than their non-pregnant peers, but were less likely to say they experienced headache, muscle pain, chills, and fever. Among the 827 study participants who completed their pregnancy, the rate of miscarriage was consistent with pregnancy outcomes prior to the pandemic, according to the researchers.

However, no data yet exists on pregnancy outcomes for patients given the vaccine in their first trimester.

Researchers acknowledged that “more longitudinal follow-up, including follow-up of large numbers of women vaccinated earlier in pregnancy, is necessary to inform maternal, pregnancy, and infant outcomes.”

Editor’s note: This story has been updated with an additional statement from the CDC and the headline has been changed.

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