Large surveillance study finds severe adverse events after COVID-19 mRNA vaccination are rare.

Surveillance for Adverse Events After COVID-19 mRNA Vaccination – JAMA

Editorial: Safety Surveillance of COVID-19 mRNA Vaccines Through the Vaccine Safety Datalink – JAMA

Commentaries:

mRNA COVID vaccines not tied to serious side effects – CIDRAP

Researchers find no serious health effects linked to mRNA COVID-19 vaccines – News Medical

Commentary on Twitter

Concerned about the safety of mRNA vaccines? This study of 6.2 million people who got 11.8 million doses is immensely reassuring. https://t.co/nUIqTacl0g pic.twitter.com/JBvenRVrRc

— David Juurlink (@DavidJuurlink) September 4, 2021