An American healthcare worker infected with Ebola in West Africa arrived at the National Institutes of Health (NIH) in Maryland Friday morning.
The patient is in serious condition and was flown in isolation from Sierra Leone on a chartered plane and admitted at 4:44 a.m., NIH officials said in a statement. The patient's name, age and gender were not released.
The patient had been volunteering at an Ebola treatment unit in Sierra Leone when he or she contracted the disease. The patient was flown to the United States on a chartered flight and then traveled to the hospital via private charter medevac.
The NIH Clinical Center's Special Clinical Studies Unit (SCSU) is designed for high-level isolation capabilities and is staffed by specialists in infectious diseases and critical care, the NIH said.
The person is the second to be treated for Ebola at NIH. Last fall, Texas nurse Nina Pham was treated there after contracting the disease while treating the first Ebola patient diagnosed in the U.S.
The NIH has also cared for two other people who had high-risk exposures to Ebola, but were later determined to not be infected.
The World Health Organization estimated Thursday that the virus has killed more than 10,000 people, mostly in the West African nations of Guinea, Liberia and Sierra Leone. The current outbreak is the largest ever for the disease. While deaths have slowed dramatically in recent months, the virus appears stubbornly entrenched in parts of Guinea and Sierra Leone.
The Associated Press contributed to this report.