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 ...

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

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

The same cities which experienced rapid growth during the pandemic are now reporting the highest share of home listings with ...

As we welcome a new school year, medical experts are monitoring a new variant of COVID-19. The new strain is called NB 1.8.1 ...

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

The CDC is tracking a summer rise in COVID-19 cases across the U.S., with Florida showing some of the steepest increases.Dr.

The new mice study builds on previous studies that found COVID-19 doubled patients' risk of dying from cancer.

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

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 ...

Long Covid, also known as Post-Covid Syndrome, is a new condition that is still being studied. Most people who have Covid ...