Medicine

Implemented in 1994, the immunization registry known as PhilaVax gives the city a head start.

The CDC invited Philly and 4 states to help develop U.S. strategy for distributing a vaccine. After a brief consult, a playbook was released nationwide.

It will be one of the world’s largest coronavirus vaccine studies so far, testing in 60,000 volunteers in the U.S.

The FDA still limits gay men who've recovered from COVID-19 from donating their plasma. It's a relic of the 1980s HIV epidemic advocates say should be a thing of the past.

The pandemic has put a lot of pressure on both our health care system and the scientific process — exposing weaknesses that have long e ...

How faulty data, Big Pharma and the fallout from hydroxychloroquine has haunted the research world, as desperate doctors and researchers look for a COVID-19 treatment.

As some hospitals became overwhelmed during the early days of the pandemic, educational requirements for residents in especially hard-hit regions were suspended.

The report contradicts public claims by Louis DeJoy that the recent moves he imposed “should not have impacted anybody.

“This ought to be reassuring,” NIH Director Dr. Francis Collins said before a Senate committee.

The announcement comes amid worries that the FDA will be under political pressure to approve a vaccine before tests to prove it is safe and effective are finished.

Several COVID-19 vaccine candidates are being tested now. But why does it take 30,000 volunteers to know if one is safe and effective?

With the annual flu season about to start, it's still unclear exactly how influenza will interact with COVID-19 if a person has both viruses.

Multiple studies now confirm earlier research: two drugs that reduce an immune system's overreaction can help reduce deaths of hospitalized COVID-19 patients.

A combination of things — access to primary care, chronic health conditions and environmental factors — may be to blame, but researchers still can’t say.

Many people who had COVID-19 are still experiencing symptoms weeks and months after they were infected. Now, a Penn clinic is trying to help these "long haulers" recover.