“People must learn that shaking another person's hand is not a friendly thing to do. It is not a friendly thing to put other people at risk for infectious diseases."

She and several other people were shown demonstrating the elbow bump, and the auditorium got raucous again.

"We must also consider limiting the use of coins and paper money. For this, too, may cause diseases to spread. We must use technology and human ingenuity to develop ways so that, in their daily public transactions, people touch one another as little as possible. Ideally, we also want to touch as few buttons and handles and knobs as possible.”