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The U.S. coronavirus death toll surpassed 55,000 Monday, with more than 985,000 confirmed cases, according to NBC News' tally.

Globally, there are now more than 3 million confirmed cases, according to Johns Hopkins University.

The grim milestones comes as the White House coronavirus task force coordinator Dr. Deborah Birx warned that many of the social distancing measures that have upended American life will be a fixture through the summer.

President Donald Trump said during an address in the Rose Garden Monday that the number of tests performed across the country spiked after his administration gave a list of laboratory facilities to governors. But the COVID Tracking Project data did not show any "skyrocket" in testing.

On the state level, Texas Gov. Greg Abbott announced that the state's stay-at-home order will expire on Thursday and many businesses will be allowed to open on Friday. Ohio Gov. Mike DeWine laid out strict guidelines for the resumption of retail business in May, including requirements for both employees and shoppers to wear face coverings.

Illinois Gov. J.B. Pritzker is seeking to overturn a ruling by a judge who issued a restraining order against the extension of his stay-at-home order. Similarly, Attorney General William Barr directed the nation's federal prosecutors to look for stay-at-home orders that could be unconstitutional.

Meanwhile in Italy, Europe's hardest hit country, the prime minister laid out plans for a phased end to restrictions, including the opening of restaurants and libraries in mid-May.

Here's what to know about the coronavirus, plus a timeline of the most critical moments:

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