Researchers found that inflammatory proteins produced by the virus significantly alter the function of platelets.
COVID-19 causes 'hyperactivity' in blood-clotting cells – @theU
Scientists pinpoint mechanisms associated with severe COVID-19
Understanding COVID-19-associated coagulopathy
Elevated Blood Clot Risk Persists in Some COVID-19 Cases
Can Autoimmune Antibodies Explain Blood Clots in COVID-19? – NIH
How does COVID-19 increase clotting risk?
Severe COVID-19 symptoms may be caused by overactive neutrophils
What are some examples of long-term covid damage? - Quora
What Does COVID Do to Your Blood?