Scientists from the universities of Cambridge, Bristol and Edinburgh found that the Covid-19 vaccine reduces the number of heart attacks and strokes. Research results published In the journal Nature Communications.
Researchers analysed health information from 46 million adults in the UK collected between December 2020 and January 2022. They examined the incidence of cardiovascular disease after COVID-19 vaccination, compared with incidence data among pre-vaccinated and unvaccinated people. The scientists focused on cases of arterial and venous thrombosis, heart attack, stroke and pulmonary embolism.
The results showed that the incidence of heart attacks and strokes was reduced by 10% 13 to 24 weeks after receiving the first dose of the drug. Revaccination with AstraZeneca reduced the incidence by 27% and Pfizer/BioNTech by 20%. Vaccination against COVID-19 was also noted to reduce the number of venous thrombotic events.
Additional studies have identified rare cases of cardiovascular complications associated with vaccine use. We are talking about myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the outer lining of the heart) after mRNA vaccines. Adenovirus vaccines have occasionally caused thrombotic thrombocytopenia (small vessel thrombosis). However, no new serious cardiovascular complications associated with vaccination have been identified.
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