Your posting has nothing to do with my posting. However, you did make a misstep and actually corroborated and codified my posting.--- Having Kung Flu previously gives the greatest immunity.
Kung Flu cannot be caught a second time. You can however catch a new variant like The Indian variant/flu just as you can with a cold/reg flu. You'll see in time that I was correct from the beginning that this is here to stay and it just needs to be let run through the healthy population.