The US now has more confirmed cases of coronavirus than any other country, with more than 86,000 positive tests.
According to the latest figures collated by Johns Hopkins University, the US has overtaken China (81,897 cases) and Italy (80,589).
But with over 1,300 Covid-19-related fatalities, the US death toll lags behind China (3,296) and Italy (8,215).
The grim milestone came as President Donald Trump predicted the nation would get back to work “pretty quickly”.
Asked about the latest figures at a White House briefing on Thursday afternoon, President Trump said it was “a tribute to the amount of testing that we’re doing”.
Vice-President Mike Pence said coronavirus tests were now available in all 50 states and more than 552,000 tests had been conducted nationwide.
Mr. Trump also cast doubt on the figures coming out of Beijing, telling reporters: “You don’t know what the numbers are in China.”
But later, he tweeted that he had had a “very good conversation” with China’s President Xi Jinping.