Indirect transfer via surfaces such as computer keyboards and door handles is a potential route of transmission for infectious diseases and efforts are made to control such transfer, particularly in hospitals. However, direct contact between individuals has the potential for greater efficiency of pathogen transmission, and handshakes are known to transmit bacteria, including potential pathogens. Nevertheless, some social/professional contexts place great value in the handshake and its quality. Indeed, health professionals have been specifically encouraged to offer handshakes to meet patients’ expectations and to develop a rapport with them.
It’ll take a while for culture to accept this without thinking you’re desperate to look current. 😉