DR. MARTY CETRON, CDC: Airline carriers, crew members, airports can be a very important partners in that front line.</s>PAMELA BROWN, CNN CORRESPONDENT: Since March, the disease has spread across several nations borders with more than 1,000 cases being reported in Guinea, Sierra Leone, and Liberia. More than 600 of those infected have died. The problem is current tests detect ebola only after a person shows symptoms. And most of the early symptoms are common ones -- fever, sore throat, chills, muscle aches and nausea.</s>BROWN: And unlike the flu, Ebola is only spread through contact with bodily fluid, not through the air. And officials here say because of the way it's transmitted there's very little risk for the U.S. population. But that said, Carol, Washington is hosting the African summit next week with African leaders coming from some of the places where ebola has been detected and U.S. officials are saying they are taking every necessary precaution and anticipation of that summit -- Carol.</s>CAROL COSTELLO, CNN ANCHOR: Pamela Brown reporting live for us this morning. Thank you. Still to come in the NEWSROOM, the propaganda machine is in full force of the bloody conflict between Israel and Hamas. New reports saying that Hamas is encouraging its supporters to act as human shields -- when is enough, enough? We'll take a look next.
Health Officials Scramble to Contain Ebola; 19 Dead in Airstrike on U.N. School