Doctors treating an American health care worker with Ebola at the National Institutes of Health downgraded the patient's condition from serious to critical condition on Monday.
The research center announced the change in a press release Monday afternoon and said no additional details about the patient will be released at this time.
The patient was flown to the Bethesda research center after contracting the deadly virus while working at an Ebola treatment center in Sierra Leone. The healthcare worker was admitted to a special isolation center at NIH early Friday morning.
NIH said Monday it has no pending admissions of other individuals with Ebola or individuals exposed to the virus. Last year, NIH successfully treated Texas nurse Nina Pham, who was infected with the virus while treating a patient at a Texas hospital. Pham was released from the hospital on Oct. 24.
Four other American health workers were flown to Nebraska and admitted to a hospital on the University of Nebraska Medical Center campus on Sunday after being exposed to the Ebola virus in Sierra Leone. Those health workers were free of symptoms, according to the Centers for Disease Control, and will be observed for 21 days.
