[ZERO] A higher-than-expected number of miscarriages and other forms of fetal loss were associated with COVID-19 vaccinations in Israel, a new study has revealed.
Researchers found 13 fetal losses—four more than the nine expected—for every 100 pregnant women who received a COVID-19 vaccine during weeks eight to 13 in pregnancy, according to the study, which was published as a preprint on the medRxiv server.
Most people in Israel, including pregnant women, received the Pfizer-BioNTech COVID-19 vaccine.
Pfizer did not respond by publication time to a request for comment.
The team behind the study includes Retsef Levi, a Massachusetts Institute of Technology researcher who was recently named to the committee that advises the Centers for Disease Control and Prevention on vaccines, and Dr. Tracy Hoeg, who works for the Food and Drug Administration.
The researchers analyzed electronic health records from Maccabi Healthcare Services, one of four organizations that provide health care to Israelis. They looked at 226,395 pregnancies that occurred between March 1, 2016, and Feb. 28, 2022. The primary analysis looked at fetal loss for pregnant women after dose one or dose three of a COVID-19 vaccine, with fetal loss including miscarriage, abortion, and stillbirth.
The researchers came up with an expected number of fetal losses based on a model that drew from data before the COVID-19 pandemic, then compared the expected number of fetal losses with those that occurred from week eight of pregnancy onward.
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