Debunked Misinformation About Vaccination and Miscarriages Resurfaces

During a school board meeting in Ohio, a man repeated the debunked claim that a CDC study found that 80 percent of people who were pregnant at the time of COVID-19 vaccination suffered a miscarriage or stillbirth. The claim is based on manipulated data from the preliminary findings of a CDC study investigating COVID-19 vaccines and pregnancy. Because the study only included data from completed pregnancies, the vast majority of those vaccinated earlier in their pregnancy are still pregnant. The study explicitly states that “whereas some pregnancies with vaccination in the first and early second trimester have been completed, the majority are ongoing.” Bad actors online misrepresented the study’s results by removing data from later vaccination and only including data from completed pregnancies in people who were vaccinated early in their pregnancy. The result is a dataset of pregnancies that ended early, either due to premature birth or miscarriage. The results presented in the study are preliminary and data is still being collected. At this time, the results suggest that there is no increased risk of miscarriage following COVID-19 vaccination.

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The Public Health Communications Collaborative (PHCC) was formed in 2020 to coordinate and amplify public health messaging on COVID-19 and increase Americans’ confidence in guidance from the Centers for Disease Control and Prevention (CDC) and state and local public health officials.

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