People who received a SARS-CoV-2 vaccination had a lower risk of heart failure and blood clots in their veins and arteries after COVID-19 infection than those who had not been vaccinated, a recent involving more than 20 million participants in Estonia, Spain, and the UK found.
The magnitude of the lower risk鈥攚hich ranged from a 45% to 81% relative risk reduction鈥攚as greatest during the first month after infection, although vaccinated participants had a reduced chance of these cardiovascular events through 1 year.
The findings are likely a product of less severe disease in SARS-CoV-2 vaccinated people who are infected with COVID-19, the researchers wrote in Heart.
Published Online: April 12, 2024. doi:10.1001/jama.2024.5152