Autoantibodies May Drive Neurological Symptoms in a Subset of Long COVID Patients

A NIH-funded study found autoantibodies that target the nervous system are present in some Long COVID patients and may be linked to neurological symptoms; experiments transferring these antibodies to mice reproduced pain sensitivity, balance issues, and fatigue, suggesting autoimmunity could underlie a subset of Long COVID symptoms and might guide targeted therapies, though more research is needed to map specific antibodies and confirm causality.