Endemic to the African tropics, the Ebola virus has killed thousands in recent years, putting the World Health Organization and major donor countries in the limelight as they’ve grappled with how to …

The U.S. Navy’s dominance of the world’s oceans has made it an indispensable foreign policy tool as well as a guarantor of global trade, but a mix of challenges is raising difficult questions about i…

A leading killer among diseases is now targeted for eradication by the middle of this century. Efforts to combat malaria are costly and challenging.