That scenario, code-named “Crimson Contagion” and imagining an influenza pandemic, was simulated by the Trump administration’s Department of Health and Human Services in a series of exercises that ran from last January to August.

The simulation’s sobering results — contained in a draft report dated October 2019 that has not previously been reported — drove home just how underfunded, underprepared and uncoordinated the federal government would be for a life-or-death battle with a virus for which no treatment existed.