RE: Covid stats update30 Nov 2021 12:57
Secondly, as I've said before, no: viruses don't always mutate to become less lethal. Quote from my previous post (it's me, no other source, just don't want to retype as long). "this isn't necessarily true. Evolution doesn't plan ahead like that, it selects generation at a time. When we look around and see viruses that are not very deadly, like the cold, that is because they survive long enough for us to become familiar with them. With lethal viruses (think ebola), they rapidly kill their host pool and die out, unless they have a reservoir in another species (rabies, ebola etc.). There is no telling how many viruses burnt out by killing all their hosts in the past, as they are gone. It is a common misconception that viruses mutate to become milder. If they survive long term you can expect this, but evolution will just as readily favour a variant that kills its hosts, so long as it spreads faster overall. In the end, survival of the virus in the generational terms (days) is what is selected for, not long term, so viruses may become more or less deadly at random. All you can say is evolution will tend to make the virus more infectious, that is all.
Also, technically viruses aren't alive (they don't eat, respite or grow) and they certainly don't 'want' anything, to live or to die. They are fragments of molecular code that propogate or become obsolete based on statistical interactions with host immune systems: there is no plan, and they are not predictable like this, despite what common sense / the media will say. "