Is it the flu, a cold or the new coronavirus? Patients and doctors alike are parsing signs of illness to figure out who needs what tests or care and how worried they should be. "You have three ...

WASHINGTON -- The coronavirus may have been circulating for weeks undetected in Washington state, a preliminary finding that could mean hundreds of undiagnosed cases in the state that's also home to ...

SEATTLE — Since the start of the novel coronavirus pandemic, a total of 11 children in Washington state have been hospitalized with a rare but serious syndrome that appears to be triggered by ...

As the weather cools and fall approaches, COVID-19 cases are still spiking in much of the United States. The country has yet to emerge from a late summer COVID wave driven by the highly contagious new ...