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The stark national differences in the death rates of Covid-19 patients is much discussed and politicized. Germany and Italy, for example, have similar infection rates but dramatically different mortality rates; through June 20, in Germany, 4.7% of patients have died versus 14.5% of patients in Italy. Attempts to explain these disparate death rates generally point to differences in the effectiveness of testing regimes, the timing of social distancing measures, demographics, and the number of beds in intensive care units (known as ICU capacity).