I haven't noticed specifically, but every time we take a child to the pediatrician, we've noticed that within a few days - we have a sick child.
This doesn't happen when the kids go with me to my doc, a family doc, and I even let them play with the toys in the waiting room.
We are just finishing up a solid month of illness here - a viral infection turned to bronchitis and sinusitis, complicated by asthma. And now as a result of a visit to the doc's office, one of the kids (so far) has Hand Foot and Mouth. Has to be the doc's office, we haven't been anywhere else.
So, yeh, I haven't seen a lack of handwashing, but clearly there is a lack of sanitizing!