From Harry Spoelstra (@HarrySpoelstra):>>SARS-CoV-2 infection itself – even mild and fully recovered – causes persistent cerebral hypoperfusion (mainly frontotemporal) that can still be detected months later.So, if I summarised correctly:- Everyone who had COVID-19 tends to have some lasting reduction in brain blood flow (CBF), mainly in frontotemporal areas – even if they feel 100% recovered.- In Post-COVID Condition (PCC) the decline is more pronounced in severity and more localised to right parieto-occipital regions, and this specific occipital reduction strongly tracks with fatigue.https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0335038