The WHO director-general warned there could be more hantavirus cases identified in the "coming weeks." ...

The World Health Organization has declared that an outbreak of Ebola in Central Africa is a public health emergency. Health ...

A new interactive map and groundbreaking database allows people in the world’s largest metropolitan areas to track their air pollution exposure, along with their region’s biggest sources of ...

A form of harmful air pollution that often can't be plainly observed is now being tracked with a groundbreaking new tool developed by scientists that allows residents to see where it's coming from.