Christina is a Consultant in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. Her academic background includes a PhD in Archaeology, which involved designing and running spatially explicit agent-based simulations to infer cultural transmission processes in non-industrial societies. Her current research focuses on helping design and evaluate interventions to control cholera outbreaks. Coming from a social science background, she also has an interest in how geography, and socioeconomic/behavioural patterns affect disease transmission and the effectiveness of interventions.