Some staffers at the U.S. Agency for International Development describe racing the clock to try to push out promised funds ...

There have been 1,227 confirmed measles cases this year, the Centers for Disease Control and Prevention said Wednesday.

The U.S. is about to break a record for the number of reported measles cases in a year since the infection was considered ...

The US is no stranger to epidemics. As far back as the 1600s, for example, Americans were falling victim to smallpox. Since ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...