This of course will never happen. Just human nature. Because for this to succeed everyone has to work with the plan.
With exception of some small groups like maybe the Sentinelese, we are all exposed to, and have been victims of numerous diseases. I'm thinking mainly common cold, common flus, etc. The plan can cover a lot more though.
This is from the days with the corona epidemic and lock downs.
I was wondering if by everyone, almost, wearing masks, keeping their distance, etc., if that would not also lead to less spreading of, and maybe eliminating common colds and flus.
But then I thought about how great it would be if we just extended that concept to the point that we eliminate a lot of diseases.
Unfortunately a lot of people resist and defeat efforts and so this would not have had a chance.
But still, if everyone wanted to, my thoughts were about different areas, like a metro area or a small village and surrounding area, and it starts with isolating and making those areas disease free. Meaning all entry is quarantine to get in, and testing. And all efforts to have an effective border to keep disease out. Then as more are clearly successful in being disease free, they can connect to each other, and create larger areas. As more and more areas convert, it becomes possible to have a world free from commonly transmitted viruses.
I'm not an expert in this area. I've been using the word virus because of corona and others that I know of. Bacterial infections that are transmitted person to person might also be eliminated, and other types if any.
Of course this is not only about controlling people, but also goods being delivered in need to be carefully controlled and quarantined as needed.
It would have been a nice goal to achieve, if people wanted that.