The newest concerning variant of covid-19 is rapidly advancing across the U.S. Data from the Centers for Disease Control and ...

A new COVID-19 strain has been reported in dozens of countries, including the U.S. Here's what you should know about it.

Vaccine makers will have to run large new trials before updated shots can be approved for everyone who is not at a higher-than-average risk.

New research suggests a link between some weight loss drugs and potentially blinding eye diseases. That risk is especially high for older adults. A recent study found that older adults with diabetes ...