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Now the review of clotting issues is complete and the vaccine has been found safe. There are no more clotting issue in vaccine recipients than would be expected by random chance. That means that people who did not get a vaccine have the same rate of clots as people who get it. Will people hear about this outcome or just remember the news stories about the risk of clots. We all know how that will end.

The European Union’s drug regulatory agency said Thursday that the AstraZeneca vaccine doesn’t increase the overall incidence of blood clots and that the benefits of using it outweigh the possible risks, paving the way for European countries to resume dispensing the shots....
In its findings Thursday, the EMA said the overall number of clotting events of various sorts reported since the rollout is lower than what would be expected in the general population.

But those very common clots aren’t the kind causing concern. Instead, the EMA said it will continue to look closely at two rare types of blood clots. It cited seven reports of a type that appears in multiple blood vessels and 18 reports of a kind called cerebral venous thrombosis, which occurs in a vein that drains blood from the brain.

That’s out of the 20 million people who have received at least one dose of the AstraZeneca vaccine in Britain and the EU.

Most of those cases were in people younger than 55 and the majority were women, the EMA said.

Experts said it will be critical to uncover if something predisposed those people to these rare clots. For example, before the pandemic, the brain-related clots almost always occurred in people with certain risk factors such as taking birth control pills, or any of a list of underlying conditions that affect clotting.