What a courageous guy, insulting me hidden behind his keyboard, separated by an ocean… Anyway, I’m not an epidemiologist, and probably less clever than you, but I’m a statistician, and I know how much it’s easy to make the figures say what you want them to say. A curve decrease and a fact can be related until you can observe the same curve decrease without this fact. And in countries where vaccines have not been mandatory, so with a low ratio of vaccination, you can observe exactly the same decrease. So lifestyle improvement or vaccines? The statistician is not sure, but fortunately potbelly Kenneth is here to light my brain!