The United States has reported more than 55,000 new COVID-19 cases, a new daily global record for the coronavirus pandemic, as infections rose in a majority of states.
A surge in coronavirus cases over the past week has put President Donald Trump's handling of the crisis under the microscope and led several governors to halt plans to reopen their states after strict lockdowns.
The daily US tally stood at 55,274 late on Thursday, topping the previous single-day record of 54,771 set by Brazil on June 19.
Coronavirus cases are rising in 37 out of 50 US states including Florida, which confirmed more than 10,000 new cases on Thursday.
That marked the state's largest daily spike so far and a level that exceeded single-day tallies from any European country at the height of the outbreak there.
California, another epicentre, saw positive tests climb 37 per cent with hospitalisations up 56 per cent over the past two weeks.
Texas Governor Greg Abbott, a Republican who has previously resisted calls to make face masks mandatory, on Thursday ordered them to be worn in all counties with over 20 coronavirus cases.
"In the past few weeks, there has been a swift and substantial spike in coronavirus cases," Abbott said in a videotaped message. "We need to refocus on slowing the spread. But this time, we want to do it without closing down Texas again."
Texas reported nearly 8000 new cases on Thursday.
New infections were rising in 37 out of 50 US states in the past 14 days compared with the two weeks prior, according to a Reuters analysis. The United States has now recorded nearly 129,000 deaths, nearly a quarter of the known global total.
The wave of new cases has several governors halting or back-pedalling on plans to reopen their states after months of strict lockdowns, closing beaches and cancelling fireworks displays over the upcoming Independence Day weekend.
"We are not out of this crisis. We are still in the first wave of this crisis. It requires some level of personal responsibility," California Governor Gavin Newsom, a Democrat, said at a daily briefing on the pandemic.
Earlier on Thursday, Kansas required face coverings after a 46 per cent spike in infections there last week.
The sweeping business shutdowns earlier in the pandemic devastated the US economy and threw millions of Americans out of work, leaving governors reluctant to take such draconian steps again, even if the lifting of restrictions likely touched off the new outbreak.
A US Labor Department report out Thursday showed the reopenings had a dramatic impact on hiring, with the US creating jobs at a record pace in June. However, employment remains 14.7 million jobs below pre-pandemic levels.
"Today's announcement proves that our economy is roaring back," Trump told reporters at the White House.
But the latest batch of high-frequency data assembled by Federal Reserve officials, economists and private companies suggests economic activity stalled in recent days during new clamp-downs.
Joe Biden, Trump's expected rival for the presidency in November, slammed him on Thursday.
"Quit claiming victory with almost 15 million Americans still out of work because of the crisis. Quit ignoring the reality of this pandemic and the horrifying loss of American life," Biden said in a campaign speech.
US Vice President Mike Pence said he and Trump supported decisions to pause reopenings but added that he saw no need for a national mandate for face coverings.