Long COVID-19 can cause many lingering symptoms for months, including “brain fog” – problems with thinking, memory, and concentration. A recent small study from the University of California San Francisco might provide a clue as to why this happens.
- Long COVID-19 can cause many lingering symptoms for months, including “brain fog” – problems with thinking, memory, and concentration.might provide a clue as to why this happens, and it has to do with abnormalities in patients’ cerebrospinal fluid.
The anomalies found in patients with brain fog included elevated levels of protein, suggesting inflammation, and the presence of unexpected antibodies usually found in an activated immune system. Some patients had these antibodies found in both their spinal fluid and in their blood, suggestion a systemic inflammatory response, but others only had the antibodies in their spinal fluid, suggesting brain inflammation.
In another study published this month, researchers found that brain fog is a common symptom of long COVID, affecting 67% of 156 patients studied at a post-COVID clinic in New York.
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