which is certainly a problem worth solving, but it's still a different issue than a highly infectious disease that can be spread on elevators buses

I hate it when I catch an avoidable memetic infection from somebody a couple seats behind me on a plane because of the relaxed memetic infection rules.

A few years ago I got the 'rona and recovered. A few weeks later I went to doctor who got me blood test to confirm antibodies. He wrote letter stating I had it, I fully recovered, and the vaccines are not recommended. On a lark I got another antibody blood test recently and the markers are as strong as the first blood test - no waning.