How many of you here this morning have flown on a plane this past week?

Anyone here been this week on a bus or a subway or a train?

How many of you this week entered a public building and had to push or pull open the door?

Let me try this: anyone recently ridden an escalator or taken a stairway, and held the handrail? How many of you have pushed a grocery cart this week?

I think we got just about everybody, and some of you we got multiple times.

All of these actions, just normal everyday living, put you up close and personal with the same thing: dirt, germs, microbes, bacteria, or the stuff that really might make you sick.

Before people figured out that it is bacteria and viruses that spread disease, getting sick was a scary, unknown, unexpected event. Who got sick, why they got sick…