One of the many dangers of COVID-19 is the disease's mysterious ability to promote blood clots throughout the body. Now, a new study may explain why — the disease appears to spur the production of special antibodies known to trigger blood clots.
These so-called "autoimmune antibodies" or "autoantibodies" attack a person's own tissues. Specific types of autoantibodies called "antiphospholipid autoantibodies" attack cells in such a way as to promote blood clots.
In the study, published Nov. 2 in the journal Science Translational Medicine, researchers detected these autoantibodies in about half of patients hospitalized with COVID-19.