A nine-year-old boy who wants to save his younger sister's life by donating his bone marrow will have to wait after she ...

Many viruses circulate seasonally, picking up as the weather cools in the fall and winter. So it's true that fewer people get ...

Josh Gad says he'll perform in "Jesus Christ Superstar" on Sunday at the Hollywood Bowl after a bout with COVID; John Stamos ...

As Covid-19 transmission ramps up in the United States, recent changes to federal vaccine guidance have left many Americans ...

At the U.N., he took on some of the world’s most challenging health crises in troubled areas, skillfully coordinating ...

A lawsuit filed Thursday alleges the Mayo Clinic violated federal law when it refused a security guard's request to be exempt ...

Pfizer and its German partner BioNTech on Friday lost their bid to overturn a ruling that their COVID-19 vaccine infringed ...

Moderna topped Wall Street sales expectations and reported a lower-than-expected second-quarter loss on Friday, driven by ...

Question: I have heard that in some way COVID infection or having received the COVID vaccine is also a new risk for ...

The COVID-19 pandemic upended life for individuals and communities worldwide. Social isolation, health mandates, illness, and ...

HHS Secretary Robert F. Kennedy Jr. has upended the way Covid vaccines are approved and for whom they’re recommended, ...

Respiratory infections like COVID-19 and the flu can activate dormant cancer cells in breast cancer patients who are in remission, new research finds. The study, published in Nature, found that common ...