Oxford University researchers announced the results of a thrombocytopenia study (a state with a low number of platelets) and thromboembolic events (the occurrence of blood clots) after vaccination from COVID-19. It turned out that after the vaccination increases the risk of cardiovascular disorders leading to hospitalization or even death. However, this risk is much smaller than the likelihood of such states at coronavirus infection. This is reported in the article published in the British Medical Journal magazine.
Specialists analyzed the data of more than 29 million people vaccinated by the first doses of the Oxford-Astrazeneca vaccine or Pfizer-Biontech. They used regularly collected electronic medical maps to assess short-term risks (within 28 days) hospitalization with thrombocytopenia, venous thromboembolism and arterial thromboembolia, using data collected throughout England in the period from December 1, 2020 until April 24, 2021. Other studied outcomes were trombosis of venous sinus brain, ischemic stroke, myocardial infarction and other rare arterial thrombotic events.
they found out that when using both of these vaccines during short time intervals after the first dose, the risk of some hematological and vascular side effects leading to hospitalization or death increases. At the same time, the estimated risk of these side effects is significantly higher over a long period of time after the contamination of SARS-COV-2 coronavirus.