The aftermath of the Nepal earthquake brings a risk of disease outbreaks — including measles and diarrheal diseases — among the survivors, and humanitarian agencies are rushing to bring aid to help.

The 7.8-magnitude earthquake that hit the region Saturday (April 25) has had a devastating impact, with an estimated 7 million people affected, including 2.8 million children, according to the United Nations Children's Fund (UNICEF). As many as 1.5 million people in the Kathmandu Valley are now spending their nights outdoors, either because their homes have been destroyed or they are afraid to spend the night in their homes, said Christopher Tidey, a UNICEF spokesman.