Doctor Emma was a high ranking medical officer in the US government in 2010. When the virus broke-out across America, she was escorted by soldiers to the coast, to begin work on a cure with some other scientists. They thought they were safe working in middle of the jungle, but the reseach camp soon came under attack from infected people. Doctor Emma would have been bitten by an infected person, not after she become infected herself. All hope that the US government had in creating a cure was now gone. The only survivers of the brutal attack were Private Fargo, Kevinson and the team's Captain.