Last year i developed an inguinal hernia. went to the doc and scheduled surgery (UTMB) A few days before surgery they called and told me I had to have the covid test. I declined and they cancelled my surgery. I waited 6 months untill my intestines were hanging down in my nut sack and gave in and took the test and got the surgery. When I took the test they told me it would be a couple days for the result, but they called me about three hours later and told me it was negative.
Vascular Dementia.
I don't think the effects of ischemic changes in the small blood vessels in the brain are reversible.