Health & Science

A case of the virus, which claimed a 12-year-old boy's life, has sparked fears of a new outbreak in India. Researchers fear that the deadly disease has the potential to cause

The reality is breakthrough cases are becoming more common. Here's what you should know about getting a breakthrough case — and what I wish I'd known.

Plans for COVID-19 booster shots in some Western countries are highlighting vast disparities in access to vaccines around the world.

Cases of COVID-19 more than quadrupled at the University of Delaware this week, school officials say, stretching on-campus quarantine space to the max.

The Health Department said some doctors are pushing stock exemptions that are available to anyone, regardless of medical necessity.

What's behind the decision of a quarter of Americans who haven't been vaccinated? And, with a shortage of ICU beds and ventilators in several states, who gets treated?

The passing of 20 years since the 9/11 terror attacks has meant that some of the wounds cut by that day have closed — others have not. ...

Experts recommend giving yourself space and time to feel the sadness and outrage as you look for a path to recovery from the losses.

Owner Mike Keane was at the bar the day the towers came down just two blocks away. He works to keep the memory alive.

Philadelphia health officials are still weighing whether to impose a mask mandate at outdoor sporting events.

The rate of new cases of COVID-19 among babies and children under 4 years old in the U.S. recently surpassed the rate of new cases among adults older than 65.

The delta variant is filling hospitals, sickening alarming numbers of children and driving coronavirus deaths in some places to the highest levels of the entire pandemic.

The distribution is part of a statewide emergency preparedness effort. The Limerick plant is one of Pennsylvania’s four active nuclear power stations.

Wealthy nations — including the U.S. — have begun or are considering plans to offer third shots of two-dose vaccines to their vulnerable people.

People are likely to be confused by common terms like "mitigation" and "carbon neutral," according to a recent study.