Some scientists think this drug has promise for COVID-19. But controversy around the drug is complicating the job of scientists who just want to find answers.

Developing and producing a vaccine is a complicated process — one that is heavily reliant on countries sharing supplies and a common goal, says Prashant Yadav of the Center for Global Development.

Antibody tests can identify people who have been previously exposed to the coronavirus. But false positive results are a concern. Performing two different tests could reduce errors.

Motor vehicle deaths are typically the biggest source of donor organs nationwide. But as the coronavirus forced most Californians indoors, traffic crashes and other lethal mishaps declined.

Todd Olson is CEO of a Minneapolis manufacturer that played a key role in a project to help General Motors make ventilators for the pandemic. He calls the effort "our biggest moment."

Hotels have been devastated by the pandemic. To survive, they are adapting with extra-deep cleaning and contactless interactions. And it may mean rooms with no notepads and pens — and no minibars.

Illinois is switching thousands of children who rely on Medicaid to managed care plans. It's meant to save money, but in the past such moves have caused disruptions in treatment.

Dr. Deborah Birx said data from across the country shows that new hospitalizations have dropped by 50% in the last 30 days, and deaths continue to decrease week over week.

Pennsylvania Secretary of Health Dr. Rachel Levine responded to critics who say there are holes in the state's plan to test all residents and staff at nursing homes: "The plan is an evolution."

Lawmakers squabbled over how quickly the economy can rebound from the coronavirus shutdown and whether the government is doing enough to support struggling families and businesses.