COVID-19 activity is rising in much of the country. Data released Friday by federal health officials shows overall ...

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

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

The public discourse around the origin of the pandemic has increasingly been shaped by political agendas and conspiratorial ...

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

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

A County Antrim man whose father died during the Covid-19 pandemic has told the Covid-19 Inquiry that he never saw his dad ...

Josh Gad announced he has COVID-19 and dropped out of a stage production of the musical "Jesus Christ Superstar," set for the ...

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

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 ...

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

"I want to make sure that I always leave open the possibility that I'm wrong," says Trump's director of the National ...