I recently was vacationing on a cruise ship and was greeted continually  by a  smiling person who sanitized every person's hands when entering restaurants, bars, or when entering the ship after going ashore.  I was very impressed with  the way this necessary activity was handled.   This was the practice for the entire ship during my entire stay.    In a hospital situation this would be possible on entering the hospital for visitors making it a  pleasant reminder rather  than an opptional activity.