A stimulus package worth more than $1.8 trillion (£1.5tn) has been agreed by US Senate leaders and the White House to ease the impact of coronavirus.
It reportedly includes payments of $1,200 to most American adults and aid to help small businesses pay workers.
Full details of the deal, which Congress is expected to pass, are not known.
Financial markets around the world rose on news of the deal.
But the top US infectious disease expert, Anthony Fauci, warned that “you have to be very flexible” about a timeframe for ending the crisis.
New York Governor Andrew Cuomo warned the illness was spreading faster than “a bullet train” in his state, which is at the centre of the pandemic in the US.