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Among the best solutions: using disposable blood-pressure cuffs on incoming patients; infusing hospital equipment with silver ion particles to create an antimicrobial shield; and forbidding doctors to wear neckties because, as the U.K. Department of Health has noted, they “are rarely laundered,” “perform no beneficial function in patient care,” and “have been shown to be colonized by pathogens.
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Steven D. Levitt (SuperFreakonomics, Illustrated edition: Global Cooling, Patriotic Prostitutes, and Why Suicide Bombers Should Buy Life Insurance)