100 people may have been exposed to Ebola via first U.S. patient, four are isolated

Pedestrians walk past a mural showing the symptoms of the Ebola virus in Monrovia

"Up to 100 people may have had contact with the first person diagnosed with Ebola in the United States, and four people were quarantined in a Dallas apartment where sheets and other items used by the man were put in sealed plastic bags to prevent infection."—Reuters.

Image: In Monrovia, Liberia, people walk past a mural that shows the symptoms of the Ebola virus. [REUTERS/James Giahyue]