Higher risk of clots from COVID-19 compared with vaccines: Study

The rollout of shots produced by AstraZeneca and Johnson & Johnson has been disrupted by fears over blood clots.

There is a much higher risk of brain blood clots from COVID-19 infection than there is from vaccines against the disease, British researchers said on Thursday, after the rollout of inoculations was disrupted by reports of rare clots. AstraZeneca and Johnson & Johnson (J&J) have both seen very rare reports of cerebral venous sinus thrombosis (CVST) linked to their vaccines. On Wednesday, the United States paused vaccinations using J&J’s shot while a potential link with clots was investigated, with Denmark ditching AstraZeneca’s shot over the issue.