I did look up the information and divided out number of cases vs number of deaths and the percentages of mortality I found are very similar with common flu. Some years death rates are higher and some lower.I don't do political... it's a waist of time listening to that stuff.
Furthermore how does immunity develop in the human body? Not only by staying healthy, not smoking etc, but by putting the immune system to work. That doesn't mean you should go out and inhale contagons on purpose. Isolate yourself from the world for a length of time and you may not be very resistant to anything afterward.