Possible damage to the brain due to COVID-19

This paper, “Brain imaging before and after COVID-19 in UK Biobank” (PDF here) argues that there is strong evidence for loss of grey matter in the brain of people having been infected with the SARS-CoV-2 virus, especially related to smell and taste, but also to memory and emotion.

We identified significant effects of COVID-19 in the brain with a loss of grey matter in the left parahippocampal gyrus, the left lateral orbitofrontal cortex and the left insula. […] We further compared COVID-19 patients who had been hospitalised (n=15) with those who had not (n=379), and while results were not significant, we found comparatively similar findings to the COVID-19 vs control group comparison, with, in addition, a greater loss of grey matter in the cingulate cortex, central nucleus of the amygdala and hippocampal cornu ammonis (all |Z|>3). Our findings thus consistently relate to loss of grey matter in limbic cortical areas directly linked to the primary olfactory and gustatory system.

This might help explain long COVID. Again we must conclude that this virus is very bad for us.

 

 

 

 

 

 

 

 

 

 

 

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