In which case he's misusing the term "miasma", oversimplifying modern medicine by labelling the entire practice as "germ theory", and presenting a false balance on the issue. And it's kinda dangerous to dog-whistle like that; vaccines have saved far more lives than simple nutrition and healthy living would be able to replace. We've seen the outcome of RFK spewing misinformation about the measles vaccine in Samoa. People suffer and die.