But U.S. officials are still working to find centers in Europe to accept Americans who need advanced treatment, seen as critical to improving odds of survival.
The Ebola outbreak in the Democratic Republic of Congo is already estimated to have caused more than 1,000 cases and more than 200 deaths since it was announced May 15.
With talks at an impasse, both sides are holding to positions their opponents call unacceptable, while the economic pain caused by the Strait of Hormuz blockade continues to grow.