Sometimes it’s best to avoid hand-to-hand contact

David Whitworth, Reader in Biochemistry at Aberystwyth University, says, “We found that diverse greetings carry varying amounts of germs, with a firm long handshake passing the most bacteria between shakers, and a quick fist bump the least. Sometimes it is best to avoid handto-hand contact – for example, in healthcare settings, or when an infectious illness is going around.”