Nina is said to probably have had the closest contact with Duncan, she was his personal nurse and was in his room often. She and others who cared for Duncan wore protective gear, including gowns, gloves, masks and face shields, and sometimes full-body suits but that didn't help Nina. She's officially the first person to contract the disease within the US.
She's currently being treated at the same hospital. Yesterday, she received a blood transfusion from Ebola survivor, Dr Kent Brantly. Hopefully she will make it.