Four Americans who may have been exposed to the deadly Ebola virus in Sierra Leone have arrived in the United States and are being observed at the University of Nebraska Medical Center, the hospital said on Sunday.
The other individuals are expected to be monitored at the National Institutes of Health, Maryland or at Emory University Hospital in Atlanta, the CDC said.
The CDC had said all the individuals who were being flown back to the United States were free of symptoms.
The individuals arrived on Saturday and are being housed on the University of Nebraska Medical Center campus in Omaha, where medical personnel will monitor them for 21 days for Ebola symptoms, hospital spokesman Taylor Wilson said.
A U.S. healthcare worker who tested positive for Ebola while in Sierra Leone arrived at the NIH on Friday and was in serious condition, the NIH said.
On Friday, CDC sent a team to Sierra Leone to investigate how the health-care worker became infected, and determine who might have been in contact with the worker.