Doctors have documented what they believe to be the first known case of a U.S. patient developing blood clots after receiving the Moderna COVID-19 vaccine.
In a case report, researchers document a 65-year-old man who visited Allegheny Health Network in Pittsburgh, Pennsylvania, 10 days after his second and final dose.
He was diagnosed with blood clots in his legs, which they determined to a rare even caused by the immunization – and he ultimately passed away.