_Although I normally prefer not to speculate, there is something strange/interesting with all the covid-19 infections & deaths that has also been noticed by Michael Levitt in his extensive stats - every single hard-hit region saturates in a few weeks.

It& #39;s unlikely all those countries magically found the right measures just after the spread accelerated, so it& #39;s likely rather related to the infection itself. Either we underestimate immunity through the RNA-tests of active infections, or some people are less susceptible.