Joris Verwijst – BSR Agency / Getty ImagesA sign indicating a COVID-19 vaccination site is set up in a former supermarket distribution center on Jan. 5, 2021, in Veghel, Netherlands. (Joris Verwijst – BSR Agency / Getty Images)
A link between AstraZeneca’s COVID-19 vaccine and rare blood clots in the brain has been discovered, but officials have yet to identify a possible cause, according to a senior European Medicines Agency official.
“In my opinion, we can now say it, it is clear that there is an association (of the brain blood clots) with the vaccine,” Mario Cavaleri, chair of the EMA vaccine evaluation team, said, according to Reuters.
“However, we still do not know what causes this reaction.”
“At present the review has not identified any specific risk