Four weeks after a puzzling outbreak was reported in the Democratic Republic of Congo, the World Health Organization has identified the cause.

Disease X, a hypothetical yet plausible pathogen, could lead to a global health crisis. Experts stress the urgency of ...

An awkward question remains five years after COVID-19 began its deadly rampage: is the world ready to handle the next ...

The Africa Centers for Disease Control and Prevention dubbed it "Disease X." National and international health experts raced to the scene. But because the rainy season made dirt roads hard to pass ...

This assessment contrasts with earlier reports that the illness previously called “disease X” resulted from severe malaria. The current report, however, is in line with the hypothesis put ...

There are also the unknown unknowns, or "disease X" — an unknown pathogen with the potential to trigger a severe global epidemic. To prepare for this, we need to adopt new forms of surveillance ...