A YEAR IN REVIEW
In March 2015 , four Americans who may have been exposed to the deadly Ebola virus in West Africa arrived back in the U . S . and were observed at the University of Nebraska Medical Center
Africa arrived back in the U . S . and were observed at the University of Nebraska Medical Center .
The individuals arrived and were being housed on the University of Nebraska Medical Center campus in Omaha , according to Reuters , where medical personnel monitored them for 21 days for any Ebola symptoms
A U . S . healthcare worker who tested positive for Ebola while in Sierra Leone arrived at the National Institutes of Health in Maryland in serious condition , the NIH said .
The people under observation in Nebraska were among at least 10 Americans flown to the United States by non-commercial air transport whom may have been exposed to the unidentified Ebola patient in Sierra Leone or had a similar exposure to the virus as the patient .
While the virus has killed thousands of people in Sierra Leone , Liberia and Guinea , only a handful of cases have been seen in the United States , Spain and Britain — almost all contracted in West Africa .
8 December 2015