Study Says Fist Bumps Are Less GermyThe familiar knocking of knuckles spreads far less bacteria than a typical handshake, researchers report. It seems to be the wisest greeting, especially during cold and flu season.
Doctors: Fight Illness With "Fist-Bumps" Over HandshakesA way to develop trust, the handshake is the universal sign of a deal. But some healthcare facilities are now urging their employees to do away with the handshake.

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