100 years ago we were pouring our excrement into the same rivers and estuaries which were supplying our food. We've come a long way to the point where we can wash our hands anytime we want, good enough for me.

The kind of products being marketed to us make me think we're all being brainwashed by marketers to be neurotic germophobes who will buy anything under the premise that it kills germs.

I tend to view the human immune system as something which, in order to work well, needs exercise. Work provides flu shots, I'm a health adult and don't expect much more than a minor inconvenience from the sniffles and a fever now and then. If I was 70 years old or had a health condition, that would be different.