A 52-year-old woman from New South Wales has become the second Australian to die from an extremely rare form of blood clots that was likely linked to the AstraZeneca vaccine.

Therapeutic Goods Administration (TGA) confirmed the woman’s death on Thursday, saying she died from a clot in her brain. As of today, Australia has recorded 48 confirmed cases of people who have suffered from the rare blood clotting disorder after receiving the AstraZeneca vaccine.

She was one of four Australians who have suffered blood clots as a result of the vaccine in the past week.

“This case presented as a severe form of this syndrome, with a blood clot in the brain, known as a cerebral venous sinus thrombosis,” the TGA said.

The NSW woman is the second person to die from blood clots likely linked to the vaccine. A 48-year-old woman died from the rare blood clot in April.