A 2d wave of coronavirus cases in the US will be even worse than the first, the country's pinnacle health official has warned.

Centers for Disease Control and Prevention (CDC) director Robert Redfield said the hazard was higher as a clean outbreak would probable coincide with the flu season.

It would put "not possible strain" at the US health care system, he stated.

The US has seen more than 800,000 instances - the highest inside the world.

More than 45,000 humans have thus far died with coronavirus across the US, consistent with a tally kept with the aid of Johns Hopkins University.

California had its maximum one-day upward push in new instances on Monday even as New Jersey, the worst-hit US state aside from New York, noticed its highest increase in deaths in a single day