Moussa initially trained as a medical doctor in Guinea. The Ebola outbreak, which severely affected his country between 2013 and 2015, and the social conflicts that marred the response, sparked his interest in the social sciences as they can apply to and help with health issues. Moussa completed a Master of Public Health in social and behavioural sciences at the University of Ghana, and a Master of Science in medical anthropology at Brunel University in London. He contributed to the Lassa research of the Coalition for Epidemic Preparedness Innovations and was also involved in an anthropological study of human-animal cohabitation in a rural Guinea area endemic for Lassa fever. In this context he authored a study of the often unacknowledged ways in which children come into contact with rodents through hunting and consumption. He is now interested in further exploring discourses around the scientific notion of a “disease hotspot” in localities of Guinea, Sierra Leone, and Liberia with different – and heretofore unexplained – incidences of Lassa.