Global Study Finds Small Increase in Heart and Brain Disorders Linked to COVID Vaccines

A multi-country study of nearly 100 million vaccinated individuals found links between COVID-19 vaccines and increased risks for adverse effects such as myocarditis and Guillain-Barré syndrome. The study, conducted by the Global COVID Vaccine Safety project, looked at recipients of Pfizer, Moderna, and AstraZeneca vaccines across eight countries and identified higher-than-expected instances of certain adverse events. The researchers emphasized the importance of considering the risk associated with COVID-19 infection when evaluating the risk-to-benefit ratio of vaccination.