The woman may have had a link to another person, who was married to an Ebola survivor and who died a few days previously in Democratic Republic of Congo.
The person, whose identity has not been revealed, may have been exposed to the virus in Democratic Republic of Congo and is now at the University of Nebraska Medical Center.
The study will examine the efficacy of four drugs—an antiviral and three monoclonal antibodies—that are already being used to treat patients in Democratic Republic of Congo.