A faster response could have prevented most U.S. Covid-19 deaths: That isn’t a hypothetical question. And the answer that emerges from a direct comparison of the fatalities in and policies of the U.S. and other countries — South Korea, Australia, Germany, and Singapore — indicates that between 70% and 99% of the Americans who died from this pandemic might have been saved by measures demonstrated by others to have been feasible.
At least three factors enable meaningful comparisons of these nations with the United States. First, we scaled up their population sizes and Covid-19 deaths to match those of the U.S. Second, in each of these countries, roughly 80% or more of the population lives in urbanized, transmission-prone areas, similar to the U.S. Third, the pandemic took root earlier in these other countries than here, as measured by the date of the 15th confirmed case in each, meaning that foreign leaders had to act with less information to guide their decisions than did U.S. leaders.