Americans were put on notice Monday not to let up in the fight against the coronavirus, as a grim milestone of 10,000 deaths cast a pall over the first signs of optimism about the outbreak's trajectory.
The United States has emerged as one of the world's worst-hit nations, with a steadily mounting number of fatalities and millions facing the possibility of economic ruin.
Authorities began the week by telling frightened communities to brace for one of the worst periods yet in an outbreak that has not yet reached its peak.
Baltimore-based Johns Hopkins University, which has been keeping a running tally of coronavirus numbers, said more than 36,000 US cases had been confirmed, with 10,923 deaths by late Monday.