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

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

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

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, ...

According to Lokant, if you have COVID and notice certain concerning symptoms, such as difficulty breathing, chest pain or ...