A scientist tests a patient's blood for Ebola at the European Mobile Laboratory in Gueckedou, Guinea. The first cases reported in the outbreak occurred in a small village about eight miles outside Gueckedou. Misha Hussain /Reuters /Landov hide caption

itoggle caption Misha Hussain /Reuters /Landov

A view of a road closure to the Vattnajokull glacier, the site of the Bardarbunga volcano under the Dyngjujokull ice cap in Iceland, on Sunday. Scientists had worried that the volcano might spew steam and ash, but say now that it appears to have quieted. Vilhelm Gunnarsson/ Fretabladid/EPA/Landov hide caption

itoggle caption Vilhelm Gunnarsson/ Fretabladid/EPA/Landov