Maybe the custom of shaking hands should be modified
A recent study by Michigan State University shows that of almost 4,000 people observed in a field test only five percent washed their hands effectively and more than 10 percent didn’t wash them at all. The Centers for Disease Control and Prevention recommend people wash for 15 to 20 seconds with soap and water in order to kill infection-causing germs.
The study too showed that men were not near as sanitary as women were when it came to washing hands. Men only used soap when they did wash half the time and women used it 78 percent of the time.