Mukpo contracted the virus while on an assignment in Liberia. After he began showing symptoms, he was immediately isolated and soon brought to the United States for medical treatment. His colleagues returned from Liberia a bit later and were examined by medics who found no Ebola symptoms.
Also on Tuesday, the U.S. National Institutes of Health upgraded from “fair” to “good” the condition of another Ebola patient, Texas nurse Nina Pham. She was also diagnosed with Ebola earlier in October after taking care of Thomas Eric Duncan, the first Ebola patient diagnosed on U.S. soil.
The World Health Organization (WHO) reported last week that the Ebola epidemic was spreading geographically and the death toll exceeds 4,500, while the number of probable and suspected cases nears 9,000.