But suppose then that one of them mutates.

Now it turns out that these spots also don't change much when the virus mutates.

There's a mutation in the gene and one of them mutates to follow a selfish strategy.

But what happens is, of course, it mutates over the next 80 years and it turns into something rather insidious.

The worst possibility is that a very simple germ, like staph, for which we have one antibiotic that still works, mutates.

So, if there's a gene causing this trimming and if that gene mutates, then you get deficient trimming between adjacent brain areas.

You know, the problem is if this virus occasionally mutates so dramatically, it essentially is a new virus and then we get a pandemic.

It mutates furiously, it has decoys to evade the immune system, it attacks the very cells that are trying to fight it and it quickly hides itself in your genome.

In addition, these researchers found a new site on HlV where the antibodies can grab onto, and what's so special about this spot is that it changes very little as the virus mutates.

And you could imagine, as a virus goes from one species to the next, as it goes from Species A to B, if it mutates to be able to infiltrate these cells, it might take some it'll take the DNA that it already has, that makes it, it with it.