There is some exciting news coming out of the new version of CRISPR. The indication is that it will be able to identify and help our immune system kill viruses and bacteria.Again, germs are going to mutate anyway, no matter what. It's what they do. Even if all antibiotics were banned all over the planet for the next 60 years, in 60 years plenty of today's germs would have naturally mutated enough, that most of today's treatments would be useless, including antibiotics.
My daughter, and I had an interesting discussion. In 300 years from now, the viruses, and diseases, for the most part, would be radically different from the ones we face today. Just like now, many illnesses, and ailments that were serious in yesteryear, are harmless, or have been eradicated now. In 300 years, I suspect a lot of what we face today, will be things of yesteryear. In that time, there will be diseases, and illnesses they will face, that we've never even heard of.
Things will be drastically different in 300 years in ways we cannot fathom now