COVID-19 infection tied to much higher clot risk than vaccinationThe risk of blood clots is higher following COVID-19 infection than after vaccination, researchers based at Oxford University reported today in BMJ.Earlier this year, a number of countries identified rare thrombocytopenia and thromboembolic events in people who had received adenovirus-based vaccines, which resulted in pauses to investigate and modifications in vaccination policy.
Following these investigations, vaccine advisory groups said the benefits of vaccination, on the whole, still outweighed the risk.To look for patterns with thrombocytopenia and thromboembolic events after vaccination, the researchers examined data from the health records of 29 million people in