[theold]

Brain fog is one of the most common persistent symptoms among people recovering from Covid.

The symptom has been reported in around half of people suffering from long Covid.

Examination of the cerebrospinal fluid of several long Covid patients found elevated levels of inflammatory protein and the presence of unexpected antibodies.

The researchers speculate that these "turncoat" antibodies could be attacking the body and causing long-term symptoms.

https://www.express.co.uk/life-style/hea...inal-fluid