Numerous neurological problems such as tremors, seizures, and impaired consciousness have been linked to severe COVID-19, and a small German study may have uncovered a mechanism by which the virus appears to trick the body into attacking the brain. Researchers have been seeing these symptoms without finding the coronavirus in the cerebrospinal fluid circulating through the brain and spinal cord. It appears that patients' immune systems are producing what are known as autoantibodies that mistakenly target a person's own tissues or organs, researchers reported on Monday on medRxiv, in advance of peer review.
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