This Oct. 7, 2013, photo provided by Jeremy Writebol show his mother, Nancy Writebol, with children in Liberia. Writebol is one of two Americans working for a missionary group in Liberia who has been diagnosed with Ebola.

Courtesy Jeremy Writebol / AP

This Oct. 7, 2013, photo provided by Jeremy Writebol show his mother, Nancy Writebol, with children in Liberia. Writebol is one of two Americans working for a missionary group in Liberia who has been diagnosed with Ebola.