As to non-severe COVID-19 patients who recovered from subacute stage, "20% of the patients had abnormal [brain] magnetic resonance scans.. We found increased cortical thickness in bilateral OB (olfactory bulb), left entorhinal cortex, right perirhinal cortex, bilateral insulae, and bilateral gyri recti. Right OB was thinner in patients with anosmia and ageusia. Left perirhinal cortex and left gyrus rectus were thicker in patients with vertigo. Sleep disturbance was associated to increased thickness in left perirhinal cortex. Patients with brain fog had smaller SN (substantia nigrae) bilaterally. Patients with anxiety symptoms after COVID-19 had increased right hippocampal area. Neutrophil-to-lymphocyte ratio was correlated to the thickness of right perirhinal cortex.." I feel SARS-CoV-2 is a natural enemy of human brain. neurology-asia.org/system/index.p…
