The Claim:
In a discussion on the Piers Morgan show, Brett Weinstein claims that mRNA COVID vaccines are “fatally flawed” and cause the body to attack its own cells in ways that can damage the heart, making it too dangerous to use.
The Facts:
Research shows that COVID infection, not the COVID mRNA vaccine is responsible for increasing the risk of serious cardiac events. COVID vaccines actually protect against serious cardiac events and stroke in people who have had previous COVID infections.
This is not the first time someone claimed that mRNA vaccines can cause autoimmune damage. Ryan Cole has previously claimed that a journal-published paper showed that mRNA vaccines caused cancer and autoimmune issues.
But the lead author of that paper emphasizes that there is no evidence for these claims. The author notes that over the last 10 years, many clinical trials have tested mRNA vaccines. None of these studies found that the vaccines caused autoimmune diseases. Also, no research has shown that autoimmune diseases show up months later after vaccination.
Large population studies that tracked millions of vaccinated people found no surge in long‑term autoimmune disorders; in fact, catching COVID‑19 itself poses a far bigger autoimmune risk than getting the shot.