Jason Calhoun born in April 8th, 1986 in Arizona, USA. He had always wanted to be a scientist but after graduating from high school found him self in the US Army. After serving as a Medic, he began studying Pathology. Calhoun served in the US Army Medical Research Institute of Infections Diseases in a Special Pathogens Lab. After retiring from the US Army, Calhoun joined the United Nations. After the Ebola Outbreak in 2013, the United Nations created the Outbreak Research Team (ORT) to be dispatched to any outbreaks, present and future. Calhoun was recruited onto that team.