Rwanda’s Ministry of Health confirmed a case of Marburg virus infection in Kigali—the first recorded instance of its kind in ...

Scientists have uncovered DNA from 214 ancient pathogens in prehistoric humans, including the oldest known evidence of plague ...

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 know about symptoms and vaccines.