What Made U.S. Health Care So Vulnerable to Covid-19

America’s health-care system, the most expensive in the world, is under renewed scrutiny because of the coronavirus pandemic. U.S. employers and households spend almost $4 trillion annually on medical care, yet America regularly lags its peers in key health metrics, and it registered the greatest number of confirmed coronavirus cases and deaths anywhere in the first six months of the global crisis. In advance of a presidential election in November, the virus’s assault shined a spotlight on the g