Have you guys seen this yet? Somehow I didn't know about this paper until now:
journals.plos.org
Hippocampal subfield volume alterations and associations with severity measures in long COVID and ME/CFS: A 7T MRI study
Long COVID and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) patients share similar symptoms including post-exertional malaise, neurocognitive impairment, and memory loss. The neurocognitive impairment in both conditions might be linked to alterations in the hippocampal subfields...