[Preprint] Risk of rare blood clotting much higher for COVID-19 than for vaccines

News release: Risk of rare blood clotting higher for COVID-19 than for vaccines – University of Oxford

Original study (preprint): Cerebral venous thrombosis: a retrospective cohort study of 513,284 confirmed COVID-19 cases and a comparison with 489,871 people receiving a COVID-19 mRNA vaccine

Commentaries: Brain clots ‘more likely’ with Covid infection than vaccine – BBC AND Risk for Cerebral Venous Thrombosis Elevated After COVID-19 Diagnosis – NEJM Journal Watch AND Study: COVID much more likely than vaccines to cause blood clots – CIDRAP

Commentary on Twitter

There is an interesting new preprint out that will probably generate a lot of coverage at least in the UK. Essentially it argues that the risk of CVST is much higher from #covid19 than from vaccines.
Quick thread on this:https://t.co/0MdDU2z9bp

— Kai Kupferschmidt (@kakape) April 15, 2021