Overnight Health Care: Biden calls on states to keep mask mandates, pause reopenings | CDC director warns of ‘impending doom’ | COVID-19 vaccines prevent 90 percent of all infections, CDC study says

Welcome to Monday’s Overnight Health Care, where we’re welcoming our new health care reporter, Justine Coleman! Everyone send her your best health care scoops, and follow her on Twitter, handle below.If you have any tips, email us at nweixel@thehill…