Newly posted email records on the U.S. Food and Drug Administration (FDA) website reveal that in the first 18 months after COVID-19 vaccines were rolled out to the public, the agency’s data monitoring of the Vaccine Adverse Event Reporting System (VAERS) showed consistent alerts for serious adverse events (including death) for the Janssen vaccine.

Meanwhile, the FDA’s monitoring found almost no safety signals for the Moderna and Pfizer shots, failing to detect signals even for widely recognized risks like myocarditis, pericarditis, and anaphylaxis.

The information is contained in emails sent by the FDA to key personnel in the Centers for Disease Control and Prevention’s (CDC) Immunization Safety Office between Jan. 12, 2021 and July 5, 2022.

Each email is accompanied by a list of adverse events for which the FDA says its weekly data analysis of VAERS yielded a statistical “alert” indicating a potential safety issue with the COVID-19 shots that may have required action on the agencies’ part.