Members of Oak Glen Residential Community are assisted by rescue personnel as rising waters from a nearby creek forced them to evacuate their homes in Johnson, Ark., on April 25. Much of northwest Arkansas was hit with heavy rain and flash floods. Beth Hall/AP
Butler County, Mo., Sheriff Mark Dobbs stands on a levee along the Black River on April 25, where floodwaters were running over into adjacent farmland southeast of Poplar Bluff. The levee broke in this location during a 2008 flood. Paul Davis/Daily American Republic/AP
Members of the Missouri Highway Patrol set off by boat to patrol a flooded street and check for victims of a flash flood in Poplar Bluff, Mo., on April 25. Jeff Roberson/AP
A pickup truck and armored delivery vehicle sit stranded in floodwaters from the Black River south of Poplar Bluff, Mo., on April 25. A thousand residents fled their homes in southern Missouri as heavy rains falling on saturated ground threatened to break the levee protecting their town. Paul Davis/Daily American Republic/AP
A section of Township Avenue was closed due to the rising waters of Niokaska Creek in Fayetteville, Ark., on April 25. Beth Hall/AP
Business owners work to prevent rising waters from entering their building along College Avenue in Fayetteville, Ark., on April 25. Beth Hall/AP
Water from a nearby creek begins to rise around a home on 54th Street in Fayetteville, Ark., on April 25. Beth Hall/AP
A truck drives through floodwaters away from a mobile home in Poplar Bluff, Mo., on April 25. Jeff Roberson/AP
While officials agree that conditions are much improved in Sierra Leone, Liberia, and Guinea, it's unclear if this Ebola outbreak could have been responded to quicker, with less cost and suffering.
ByKrista Larson and Maria Cheng, Associated Press
A top U.N. official in the fight against Ebola greeted just three patients at one treatment center he visited this week in Sierra Leone. Families in Liberia are no longer required to cremate the remains of loved ones to halt the spread of the virulent disease.