I am a demographer and epidemiologist who develops new methods and investigates population dynamics and epidemiology in low- and middle-income countries, with a focus in Africa.

Currently I am working on surveys to characterize the prevalence of the coronavirus and the size of the susceptible population in the state of Ohio, USA.

On an ongoing basis I develop mortality models and work to improve: 1) verbal autopsy as a tool to measure burden of disease, 2) indirect estimates of child mortality, and 3) small-area estimates of mortality. I also coordinate a small team developing software to implement new methods - mostly for verbal autopsy.