Dr Rick Sacra, 51, is being treated at a 10-bed special isolation unit, the largest of the United States' four. It was built to handle patients with highly infectious and deadly diseases, according to Dr Mark Rupp, chief of the infectious diseases division at the center.
Sacra the third American aid worker sickened with the virus arrived at 6:38 am (Local time) yesterday at the Omaha hospital. Sacra was wheeled on a gurney off the plane at Offutt Air Force Base, transferred to an ambulance and then wheeled into the hospital, said Rosanna Morris, chief nursing officer for the medical center.
The first two American aid workers infected by Ebola Dr Kent Brantly and Nancy Writebol have recovered since being flown to Emory University Hospital in Atlanta for treatment.
Sacra came to Omaha instead of Atlanta because federal officials asked the medical center to treat him in order to prepare other isolation units to take more Ebola patients if needed.
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Sacra, a doctor from Worcester, Massachusetts, who spent 15 years working at the Liberia hospital where he fell ill, said he felt compelled to return after hearing that two other missionaries with the North Carolina-based charity SIM with whom he'd worked were sick.
An estimated 2,100 people have died during the outbreak, but Ebola has not been confirmed as the cause for all of the deaths.
Dr Phil Smith, medical director of the Omaha unit, has said a team of 35 doctors, nurses and other medical staffers will provide Sacra with basic care, including ensuring he is hydrated and keeping his vital signs stable.
The team is discussing experimental treatments, including using blood serum from a patient who has recovered from Ebola, Smith said. There are no licensed drugs or vaccines for the disease, but about half a dozen are in development.