Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.

The coronavirus death toll in the U.S. passed 40,000 late Sunday, according to NBC News' tally, and there are nearly 760,000 confirmed cases as of Monday evening.

While some governors pushed back on the Trump administration's claims that states are conducting a "sufficient" level of coronavirus testing, other governors were eager to reopen businesses in their states regardless of testing levels.

Let our news meet your inbox. The news and stories that matters, delivered weekday mornings. This site is protected by recaptcha

Gov. Brian Kemp announced plans to resume many businesses in Georgia this Friday, April 24, and Gov. Bill Lee said a "vast majority" of businesses in Tennessee would reopen by the end of next week.

Meanwhile, the federal agency that oversees nursing homes announced new transparency measures requiring the disclosure of coronavirus cases to patients' families and public health officials.

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

This live coverage has ended. Continue reading April 21 coronavirus news.

Download the NBC News app for latest updates on the coronavirus outbreak.