With supply shortages rampant, many tests are restricted to people who meet specific criteria. Antibody tests, to reveal whether someone has ever been infected with the virus, are just starting to be rolled out, and most have not been vetted by the Food and Drug Administration.

President Trump is set to issue new distancing guidelines today. Here are the latest updates from the U.S. and around the world, as well as maps of the pandemic.

We’re also tracking the virus’s growth rate in U.S. metro areas.

In other developments:

Gov. Andrew Cuomo said that, starting Friday, New Yorkers would have to cover their faces in public if distancing were not possible. Maryland and New Jersey have issued similar orders. Here are the latest updates from our Metro desk.

After Mr. Trump suspended American funding to the World Health Organization and accused it of mismanaging the crisis, our reporters looked at the agency’s response during the early days of the outbreak.

Frustrated by government vacancies that he said were hindering his administration’s response to the pandemic, Mr. Trump threatened to invoke a never-before-used presidential power to adjourn Congress so he could fill the positions himself. Senator Mitch McConnell, the majority leader, suggested that wouldn’t happen.

After an anonymous tip to the police, 17 bodies were discovered at a nursing home in New Jersey that has been hit hard by the virus.

The SAT and the ACT said they would develop digital tests that college applicants could take at home.

The Navy is looking into whether it can reinstate Capt. Brett Crozier, who was removed from command after he pleaded for help fighting an outbreak aboard the aircraft carrier Theodore Roosevelt, Pentagon officials said.

John Horton Conway, a mathematician at Princeton, made profound contributions to number theory, probability theory, algebra and more — and created games from it all. He died on Saturday at 82, and his obituary is the latest in our series about those we’ve lost to the coronavirus.

The details: We’ve compiled expert guidance on several subjects, including health, money and travel.

The Times is providing free access to much of our coronavirus coverage, and our Coronavirus Briefing newsletter — like all of our newsletters — is free. Please consider supporting our journalism with a subscription.