On the news tonight, 1 in 4 people tested in Texas are positive for covid virus. YET, the news also is saying hospitalizations are DOWN. Once we get past 50% of people testing positive for Covid, there will develop the natural herd immunity. Eventually the virus may have infected almost everyone at the rate things are going, once everyone is infected, everyone either gets over it or dies, then the vaccine is almost worthless. One theory on why the medieval plaque died out was it infected and killed off everyone it could leaving behind a more immune population. They did a genetic study of a village in England who did well during that time and they identified they have a gene that protected them from the plague versus others of their time. Anyway, the survivors get to reproduce their genes throughout the entire population. Another way viruses loose their potency, their mutations survive in the general population because their mutation allows more people to live, since if the virus kills off too many people, it also kills itself off and cant infect anymore people as it becomes extinct. I have read the covid virus has already mutated into many different strains, so it is easy to understand it has become more survivable, less deadly that it was 6 months ago. the more deadly strains died off became extinct. The news shows still continue to hype up how deadly this is, but we are not seeing as many hospitalizations or deaths, so they are out of touch with reality. And Sweden which did things entirely differently has overcome the virus as a nation.