How to keep yourself safe in hospital?

I'm currently in the hospital, waiting for my checkup. My appointment was for 9am to11am. And doctor has just arrived, at 10.45am. In front of me, there is at least 10patience. So here I am, sitting in the waiting area, waiting for my doctor. While waiting, I'm the only one around happily typing away on a laptop. Using the hospital's wireless. :) Thank you Hospital, for having wireless, if not, I would have grown mushroom by now.

Anyway, is hospital a scary place nowadays?
Sitting next to me. there is a guy who keeps burping.. burp loud and clear. The nurse keep coming out and giving him drops on his eyes, probably an eye infection I guess.
On my far left and far right in the common area, there is two person, older senior citizen on wheel chair, which is coughing like crazy. When I was at the Hospital registration counter, I glanced at the H1N1 Symptons and coughing is one of it.
I wonder. Is our world very safe? Or is safe and dangerous is just one thin line away?

Continue waiting and working for now...hopefully can get till me by 12pm... crossing my fingers and toes...