What is the substitute for handshake? (IM 521)

Today, handshake is seen as a threat more than a form of intimacy and a equality. As being a vector of disease transmission, handshakes is often regarded as unhealthy way of communication these days. Of course, in future, there will be no more handshakes. There will be no more handshakes before starting a business meeting. There will be no more handshakes when you meet a friend after a long time. Also, judging a people's by the strength of their grip doesn't make sense anymore. Won't this effect the social connection between friends and families? What will be the substitute of handshake in the near future?