Researchers say people with certain non-O blood types, like A or B, are already at higher risk of cardiovascular diseases but this study found those with O-type blood who were hospitalized with COVID-19 did not have quite as high of a risk of heart attack or stroke.

Practically from the beginning of the COVID-19 pandemic, researchers and medical experts feared–and often loudly warned–that the virus wasn’t like other infections that people might encounter during,

People who were diagnosed with severe COVID-19 infections from the first wave of the pandemic could face double the risk of heart attack and stroke, a new study has found. Researchers focused on the long-term cardiovascular risks for unvaccinated people who were sick with the virus during the first wave of the COVID-19 pandemic in 2019 and 2020.