More contagious than other variants, and maybe more likely to cause severe disease, Delta is spreading so fast in the U.S. it could cause another surge this summer or fall, according to new research.

A new CDC study finds that people who provide unpaid care for their children or adult loved ones are twice as likely as noncaregivers to have experienced depression or anxiety, or thoughts of suicide.

Run-of-the-mill runny noses and coughs are back, after a break during the pandemic's height, when so many of us were circulating less and wearing masks. Here's how to keep household viruses at bay.

A plaque-busting Alzheimer's drug called Aduhelm has yet to prove it can preserve memory and thinking. Even so, its approval by the Food and Drug Administration is making some patients opitimistic.

This is the first new drug approved for Alzheimer's disease since 2003. It's the first to show significant progress against the sticky brain plaques that are the hallmark of Alzheimer's disease.

The FDA has until Monday to decide whether to approve the first new Alzheimer's drug in nearly two decades. Two big studies of the drug produced conflicting results.

The U.S. Preventive Services Task Force says the age that routine screening begins for colorectal cancer should drop from 50 to 45. Colorectal is the third-leading cause of cancer deaths in the U.S.

The Centers for Disease Control and Prevention shifted its stance this week on the need to wear masks if you're vaccinated. What's that mean for kids? For travel? For work? Experts weigh in.

In sprawling Flathead County, only 25% of adults are fully vaccinated against COVID-19. Public health experts worry about reservoirs of potential outbreaks as neighbors still debate the virus' danger.

Aziz Abdul Alim, from a remote part of northern Pakistan, urges people to get their COVID shot: 'Everyone should have the courage to take it.'

In Manila, a family unites to secure care and treatment for Daddy Lolo, their beloved grandfather. Along the way, they witness just how ill-equipped the country is to manage COVID.

Ecologist Suzanne Simard says trees are "social creatures" that communicate with each other in remarkable ways — including warning each other of danger and sharing nutrients at critical times.

Their physical and emotional health had withered in the pandemic year. But reentry into post-vaccination life made for tricky choices, too.

If the report by the U.S. Department of Health and Human Services' Office of Inspector General is sustained, Humana Inc. could face a record penalty for overcharges in a Medicare Advantage plan.

Most families have a tradition when everyone gathers. In the South, that tradition often involves a game of spades. And playing during the pandemic can help seniors stay sharp and mentally stimulated.