UCSF reports first U.S. case of man developing blood clots after J&J vaccine


SAN FRANCISCO (KRON) — UCSF confirmed to KRON4 News Monday it is treating a man who developed rare blood clots after receiving the Johnson & Johnson vaccine.

According to UCSF, the male patient is believed to be the first man in the U.S. with VITT syndrome, vaccine-induced thrombotic thrombocytopenia.

The news comes after the state gave the OK to resume the use of the Johnson & Johnson vaccine after federal scientific advisers decided its benefits outweigh a rare risk of blood clots.

The federal government uncovered 15 vaccine recipients who developed a highly unusual kind of blood clot out of nearly 8 million people given the J&J shot. All were women, most under age 50. Three died, and seven remain hospitalized.

But ultimately, federal health officials decided that J&J’s one-and-done vaccine is critical to fight the pandemic — and that the small clot risk could be handled with warnings to help younger women decide if they should use that shot or an alternative.

The Associated Press contributed to this report.

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