U.S. tops 4,000 COVID deaths in single day for 1st time as outbreak spirals out of control

Face mask signage is displayed outside a patient intake and Covid-19 triage area set up in a tent outside the emergency department of Martin Luther King Jr. (MLK) Community Hospital on January 6, 2021 in the Willowbrook neighborhood of Los Angeles, California. (PATRICK T. FALLON/AFP via Getty Images)