> Once a (presumably rich) person has been tested, what's to prevent them from 'needing' to be tested next week again?
Nothing which is why "testing mania" doesn't need to be calmed
> It seems different countries are approaching it differently. Probably a good problem for computer geeks to work on
No need for computer geeks. You will soon be able to look at countries who test early and often (s korea) and those that can't be bothered (united states)