Where does the six-foot rule for social distancing come from?

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One of the core disruptions of life during the coronavirus pandemic is the new necessity for social distancing—also and more accurately called “physical distancing.” Because the coronavirus can travel on liquid droplets breathed or coughed out by infected people, an array of health authorities recommend staying away from crowds and maintaining physical separation from others. It’s why restaurants, bars, stores, and other places where people mingle closely have faced such economically devastating restrictions. The U.S. Centers for Disease