Six species of the virus are known to cause disease in humans -- Zaire, Sudan, Bundibugyo, Reston, Tai Forest and Bombali.

With no serious institutions in the form of legislature, judiciary, the opposition, or civil society to check his power, Mobutu presided over a “stable” Zaire for three uninterrupted decades ...

Organizations that provide vital care for desperate and vulnerable people around the world have been forced to halt ...

In the Southwest United States, bird migrations are shifting as global temperatures warm. Gustavo Martіnez Contreras takes us to the Bosque del Apache National Wildlife Refuge in the state of New ...