Although the novel coronavirus has been mutating since the pandemic's start, three newly detected variants that may make the virus more contagious and deadly have experts concerned. But why are these troublesome variants emerging now—and what do they mean for America's response?

The Biden administration is urging U.S. health care providers to stop holding back Covid-19 vaccine doses intended to serve as patients' second shots.

State and local health departments are in charge of organizing, scheduling, and distributing Covid-19 vaccines, and in many places, a chaotic vaccine rollout has made it challenging for eligible patients to get vaccinated—as well as for some doctors and experts trying to schedule vaccine appointments themselves.

HHS on Friday delayed the start of a rule issued by former President Donald Trump's administration that would eliminate manufacturer drug rebates paid to pharmacy benefit managers and Medicare Part D plans, in today's bite-sized hospital and health industry news from California and the District of Columbia.