100 days, 1 million cases. See America’s Covid-19 epidemic, mapped.

The number of cases of Covid-19 in the United States topped one million as of Wednesday morning, meaning the country's confirmed case count now accounts for one-third of all Covid-19 cases that have been reported worldwide. See which U.S. states have been hit the hardest with our interactive maps.

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Contact tracing is key to reopening America. But how does it actually work?

States across the country are laying the groundwork to launch massive contact tracing efforts to identify people who may have contracted the new coronavirus. Some public health experts say the efforts are crucial to relaxing social distancing measures intended to curb America's Covid-19 epidemic. But how does it work?

PPE shortages are dire—and it's not just N95s in short supply

Most health care organizations have less than a two-week supply of PPE remaining, according to a recent national survey—but N95 masks and respirators didn't stand out atop the list of PPE needs. Advisory Board experts explain what the data means for hospitals tracking their PPE needs.

What it's like to live—and work—in a factory producing PPE materials for 28 days

From March 23 through April 19, 43 Braskem America workers lived at the company's petrochemical plant in Marcus Hook, Pennsylvania, working 12-hour shifts every day to produce raw materials used to make personal protective equipment for health care workers, Meagan Flynn reports for the Washington Post.

4 ways you can support Covid-19 patients—after they're discharged

Early evidence indicates some recovering Covid-19 patients are experiencing additional complications when they go home, including cardiac injury and kidney damage. Advisory Board experts outline 4 ways health systems can support these recovering Covid-19 patients.

How 5 hospitals are helping nursing homes control Covid-19

Hospitals struggling to adapt to increased Covid-19 demand need to be able to rely on post-acute providers as partners to accelerate throughput. But in order to do so, Advisory Board's Carolyn Buys and Aliki Karnavas write that hospitals should have a vested interest in helping post-acute providers control Covid-19 cases.

Around the nation: Senate set to return to DC on May 4

Senate Majority Leader Mitch McConnell on Monday said senators will return to the Capitol on May 4 and will "modify routines in ways that are smart and safe," in today's bite-sized hospital and health industry news from California, the District of Columbia, and Iowa.