Sorry, LH, I disagree about vaccination and immunizations. But I'll not go into my arguments here -- as you say, people are polarized and I'm not up to fighting about it.

I will say that I think that we as a society put too much emphasis on killing "germs". Most of them are quite harmless, even beneficial. Even E. Coli usually does no harm -- it's almost certainly in your gut right now. To stop a kid from playing in the dirt because of germs, to kill all the germs on a surface -- that's really compromising the immune system by preventing kids from building up resistance, and eventually a "germ" that otherwise is extremely minor or harmless will kill. We've moved from the reasonable to the paranoid, and much of the move can be laid to the media and advertising.