Health & Science

It appears the hack is connected to a series of attacks targeting health care and social service organizations and agencies during the pandemic.

Pennsylvania's mask mandate will be lifted on June 28 or when 70% of adult residents are fully vaccinated — whichever comes first.

"We're seeing accelerating change in our climate," says Randall Cerveny, a climate scientist at Arizona State University.

Pennsylvania Governor Tom Wolf says he will only lift face-mask requirements once the percentage of fully vaccinated people reaches 70%.

On Friday, the state will no longer require employers to have their employees wear facemasks and maintain physical distance.

As the state eases distancing and mask mandates, health officials are still failing to successfully vaccinate communities that have been disadvantaged from the start.

Today, after more than a year of often grim weekly briefings, the Philadelphia Department of Public Health quietly held its final virtual COVID-19 update.

The stunning speed of the vaccines' development and rollout has helped tame COVID-19 in the U.S., which remains the worst-hit country in the world.

Menopause typically happens during a time of life when women need to be on top of their game; managing their careers, raising children, a ...

The company studied more than 3,700 12- to 17-year-olds. Preliminary findings showed the vaccine triggered the same signs of immune protection in kids as it does in adults.

Early risers in the U.S. can catch a spectacular view of the moon Wednesday morning before sunrise, but what you'll be able to see will depend largely on where you live.

“If everybody else is doing something differently, at a certain point it puts a significant amount of pressure on our business community,” said Gov Phil Murphy Monday.

There's room for dangerous misunderstanding when doctors and public health officials talk to diverse groups about COVID-19. Health literacy projects aim to dispel confusion.

Some people feel stressed: How can you know who is fully vaccinated? WHYY’s Health Desk Help Desk offers a guide to the CDC’s mask guidance.

Hospitals are full. Testing is scant. Illiteracy is high. Most deaths aren't registered. COVID's wrath in rural India is difficult to measure but health experts are worried.