talking about how these things exist in their own sort of ecosystem and essentially take up space or niches and fight over infecting things so to speak. Which is why the idea of 'curing' the common cold is not sensible because if you actually removed that from the ecosystem you don't know what would replace it and how much worse it could be.

Even some things they vaccinated out like measles or small pox are never really gone, there were like two labs where one of those were supposed to exist in their own little quarantine. And they show back up apparently when people stop vaccinating as has happened.

There was some tweet that annoyed me about movie theatres disinefecting all the seats after every movie at the start of this (before things closed) and people thought they should be doing that all the time, but they really shouldn't, because that's just how these things get immune to stuff like that.