Health & Science

In early tests, the drug reduced the chance of people being hospitalized for or dying from COVID-19 by 50%. What about safety?

Demand has been high as individuals, employers, and organizations use the tests as a relatively cheap and simple tool to monitor for infections.

Small business owners are left trying to strike a balance between staying safe and getting back to being fully open.

In the U.S., a widespread clinical practice requires patients with alcoholic liver disease to complete a sobriety period before they can get on the waiting list for a liver.

The lack of racial and ethnic diversity in bone marrow transplant registries can have life-threatening consequences.

The proportion of COVID-19 infections and hospitalizations among vaccinated Pennsylvania residents has risen sharply over the past month.

Since Monday's deadly shooting at Jefferson Hospital, officials say they have been analyzing their safety procedures.

On Thursday, Pfizer and BioNTech formally applied for emergency use of a lower dose for 5- to 11-year-olds. Here’s what to expect:

Jessie Flynn decided she’d had enough. For years, multiple sclerosis had taken more and more away from her life — her ability to move ...

After more than 15 years of multiple sclerosis, a patient travels to Mexico for a risky, experimental treatment called HSCT, against her doctor's advice.

The inability to hire and retain workers — in part driven by low wages due to low government reimbursement rates — was already a crisis, but now threatens to collapse.

More than 140,000 children in the U.S. have lost one or both parents, or a grandparent caregiver to COVID-19, according to a new study.

Now the FDA will have to decide if there’s enough evidence that the shots are safe and will work for younger children like they do for teens and adults.

Pennsylvania has 5,600 miles of dead waterways, polluted by the coal mining industry. Ben Kalina’s "A River Reborn" shows how one was revived.

Delaware County syphilis cases are at the highest they’ve been in 20 years.