This is only the very beginning of what will be some horrific backtracking coming soon; to wit: https://www.nejm.org/doi/full/10.1056/nejme2107070 Corrected update 9/8/21: At the time of publication of preliminary findings in the Original Article related to this editorial, the number of spontaneous abortions was 104 and there was 1 stillbirth. However, no proportion could be determined for the risk of spontaneous abortion among participants vaccinated before 20 weeks of gestation because follow-up information was not yet available for the majority of those persons. The article has now been updated. In the fifth paragraph of this editorial (page 2342), the first sentence should have read,