Variants kind of fade out. From an evolutionary perspective, a virus’s entire purpose is to live and replicate within it’s hosts. That’s why we’ve generally observed later variants of some viruses to be less fatal. It doesn’t do a virus much good to kill its host.
PopularStaff7146 t1_jdjaz48 wrote
Reply to What happened to the old COVID variants, like Delta? Could they come back? by number1dork
Variants kind of fade out. From an evolutionary perspective, a virus’s entire purpose is to live and replicate within it’s hosts. That’s why we’ve generally observed later variants of some viruses to be less fatal. It doesn’t do a virus much good to kill its host.