Covid isn’t the only viral disease that has neurological effects. Covid is probably the most thoroughly studied disease in history by a mile though. It’s possible we are just more aware of its neuro effects due to insane levels of scrutiny rather than those effects being much more significant than for other common diseases.
last estimates I read mentioned 400k covid research papers, diabetes had over 1.5m and 'cancers' , as varied as that topic is , has many many millions of papers.
The intensity of research was high, and the technology yielded quick high quality results, but there isn't much reason to consider it to be 'the most thoroughly studied disease' -- maybe if you go by some arbitrary figure like 'megabytes of genomic data sequenced' ?
As they should be. Lots of American medical workers quit during and after the pandemic because the American people treated them so horribly, screaming at them that "it's just a flu", that it was a hoax, to take off their masks, to give them horse dewormer, etc. If this is how Americans treat their medical workers, they don't deserve to have proper staffing.
There were lots of additional problems, but at some point we need to own up to the brain damage and other neurological impacts being caused by repeated COVID infections.