The U.S. Centers for Disease Control and Prevention (CDC) confirmed more cases of rare blood clots tied to the Johnson & Johnson COVID-19 vaccine, saying that more than two dozen cases have been reported.
Dr. Tom Shimabukuro, with the CDC’s vaccine task force, said in an update (pdf) Wednesday that 28 total cases of thrombosis with thrombocytopenia were reported after the J&J vaccine was administered. Those were reported via the Vaccine Adverse Event Reporting System (VAERS), which is the national vaccine surveillance system.