The US now has the highest number of confirmed reported diagnosed coronavirus cases in the world, surpassing China and Italy. (Until March 26, 22:00 GMT)
According to the latest figures collated by WHO, the US overtook China (81,285 cases) and Italy (80,589).
More than 1,100 people with Covid-19 have died in the US.
At a White House briefing on Thursday afternoon, Mr Trump said: “They have to go back to work, our country has to go back, our country is based on that and I think it’s going to happen pretty quickly.
“We may take sections of our country, we may take large sections of our country that aren’t so seriously affected and we may do it that way.”
He added: “A lot of people misinterpret when I say go back, they’re going to be practising as much as you can social distancing, and washing your hands and not shaking hands and all of the things we talked about.”