Rachel Treisman

Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, said at a Friday briefing that infectious new variants may be threatening to derail the country's recent progress.

Officials said Wednesday that the masks will be delivered in the coming months, and are expected to reach an estimated 12 to 15 million vulnerable Americans.

Physician assistant and pediatric bone cancer survivor Hayley Arceneaux, 29, will be one of four crew members on the world's first all-civilian mission to space at the end of this year.

The House Select Subcommittee on the Coronavirus Crisis is seeking documents from the Occupational Safety and Health Administration, as well as three of the country's largest meatpacking companies.

With the virus still raging in the U.S., public health experts say we can't afford to just wait around for the vaccine. They share advice for what communities can do now to slow the death toll.

The CDC's planning guidance for states includes multiple scenarios for the rollout of a vaccine this year, including possibly having a limited number of doses available in October and November.

Eight of Louisiana's 15 hurricane-related deaths are linked to carbon monoxide poisoning from portable generators. As of Tuesday, many thousands of households in the state are still without power.

Tennis players are navigating the eerie stillness of a Grand Slam event known for its lively crowds. Last year's U.S. Open set an attendance record, drawing more than 737,800 fans over two weeks.

President Trump announced on Sunday that the FDA granted emergency use authorization to treat COVID-19 patients with plasma from people who have recovered from the virus, based on "promising" results.

Callie Evans and Audri Williams rap about online learning and the COVID-19 pandemic from the empty halls of Monroe Comprehensive High School, backed up by mask-wearing, move-busting cheerleaders.