Musial was convinced that he was catching too many colds by picking up germs while shaking thousands of hands each year, so he adopted the fist bump as a friendly alternative.
[6] Smithsonian researcher LaMont Hamilton suggests that the dap originated during the Vietnam War as a modified form of the Black Power salute, which was prohibited by the US military.
[7] The fist bump was seen in Australia in September 1990 at the Wetherill Park Indoor Cricket Centre between two opening batsmen, Mick Tyler and Bob Minney.
[8][full citation needed] In light of the 2009 H1N1 pandemic, the Dean of Medicine at the University of Calgary, Tom Feasby, suggested that the fist bump may be a "nice replacement of the handshake" in an effort to prevent transmission of the virus.
[12] A 2014 article in the American Journal of Infection Control documented that the fist bump and high five reduced the transfer of bacteria compared to the handshake.