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Rogue antibodies may cause some long COVID symptoms 

Transferring antibodies from patients to mice can reproduce certain neurological issues

A woman with long COVID rests against a white wall in a stairwell. She is wearing glasses and a white mask.

Some of the neurological symptoms of long COVID, including pain and dizziness, could be due to autoantibodies that attack people’s tissues. Here, a woman with the disease rests after walking up a flight of stairs.

Sebastian Gollnow/picture-alliance/dpa/AP Images

By Meghan Rosen

Rogue antibodies may be to blame for some of long COVID’s pernicious symptoms.