Hospital workers can scrub as much as they want, but how can they cope with visitors who don't have even the most basic consideration for others? Imagine, for example, the woman on my bus yesterday, if she had visited a hospital. She was coughing away for several minutes with no thought to put a hand, tissue, sleeve or anything else in front of her face, so her fellow-passengers got the full benefit of her sprayed expectorant. Can't treat that with alcohol rubs.