SARS-CoV-2 can have severe effects: a preprint posted last compared images of people’s brains from before and after they had COVID-19, and found loss of grey matter in several areas of the cerebral cortex. (Preprints are published without peer review.)
What percentage of the cases does it do this with?
Don't know. That deep level of imaging was done in a small trial.
In the article they do mention that 80% of hospitalized have neurological symptoms, but I've no idea what that means in terms of brain architecture changes or long-term symptoms. The loss of smell symptom suggests that it does infect neurons.
EDIT: It's an average of over ~300 brains that contracted symptomatic COVID vs. 300 that didn't.
When you can give some numbers, go ahead and post them.
https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(21)00324-2/fulltext
This study uses a different read-out than the last one, but, if ventilator hospitalized with COVID there was an equivalent 7-point decrease in IQ.
The scale of the observed deficit was not insubstantial; the 0.47 SD global composite score reduction for the hospitalized with ventilator sub-group was greater than the average 10-year decline in global performance between the ages of 20 to 70 within this dataset. It was larger than the mean deficit of 480 people who indicated they had previously suffered a stroke (−0.24SDs) and the 998 who reported learning disabilities (−0.38SDs). For comparison, in a classic intelligence test, 0.47 SDs equates to a 7-point difference in IQ.
Yes, if you cut off oxygen to the brain you destroy brain cells.
To be blunt, the group of people we are talking about is so small and the likelihood so unlikely, it is not something anyone should expect to deal with.
You are more likely to be killed in an automobile accident if you are younger than 65. If you are older than 65 you are more likely to fall and break your hip.
Yes, if you cut off oxygen to the brain you destroy brain cells.
To be blunt, the group of people we are talking about is so small and the likelihood so unlikely, it is not something anyone should expect to deal with.
You are more likely to be killed in an automobile accident if you are younger than 65. If you are older than 65 you are more likely to fall and break your hip.
Your two examples of other health risks are considered 'unavoidable' unless you are going to not drive or walk.
COVID is avoidable. You've gone out to extreme lengths to prevent bear attacks from killing people, but won't lift your shirtsleeve for something that all conservative estimates would rank at thousands of times more dangerous than bears.
Also, while the numbers are less dramatic in the cohort of symptomatic but not hospitalized COVID-infected group, there was significant decrease in cognition and more than 1/4 reported 'brain fog' long after other symptoms went away. The authors do not speculate about causes, but as you say sickness can cut off oxygen delivery to the brain.
@wildgrass IT doesn't do much good to point out facts to him, he is immune to one thing: FACTS and TRUTH.
He is a card carrying Trump cultist and there is NOTHING you can say or do that will change THAT or the misinformation he pukes out just like a tame Trumpite cultist.
COVID and the brain
22 Jul '21 18:04
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