Global background rates study analyzes data from 197 million people for assessment of COVID-19 vaccine safety

The U.S. CDC (Centers for Disease Control and Prevention) Global COVID Vaccine Safety Project has generated background incidence rates on a range of conditions designated as AESI (Adverse Events of Special Interest) for COVID-19 vaccine safety monitoring. Conditions studied included myocarditis, pulmonary embolism, and Guillain-Barré syndrome.