The man had revealed his travel history, and 5 schoolchildren are among his contacts.
Texas and CDC lab tests confirm the first US case detected outside of West Africa.
The new UN mission headquarters in Accra will have a strong presence in Guinea, Liberia, and Sierra Leone.
Airlifted out of Sierra Leone yesterday, a US doctor will be enrolled in a clinical trial.
As the outbreak tops 3,000 deaths, nations gather to push a global health plan.
Ebola was spotlighted at the UN General Assembly, and Pope Francis added an appeal.
The WHO numbers come from an epidemiologic analysis, and the CDC's estimate is from its newly released modeling tool.
Reports trace the evolution of the epidemic in Guinea, Liberia, and Sierra Leone, painting a mostly bleak picture but with glimmers of hope.
Outbreak toll climbs in hot spots, with reports of another evacuated health worker, more treatment beds, and an experimental antiviral.
The brutal attack occurred 3 days ago; also, Sierra Leone has imposed a curfew to combat disease spread.
