We study the complex and diverse array of conditions that influence the emergence, evolution, persistence and spread of bacterial and viral pathogens at the interface between humans, animals and the environment. Specific questions that we address include:

• How do we mitigate antimicrobial resistance in agricultural systems so that risks to human and animal health are minimized?
• Will an improved understanding of food production systems at multiple scales enable us to significantly reduce the risk of Salmonella, Campylobacter and other foodborne pathogens using currently available technology?
• How can we predict the spread of diseases over extended geographical distances, including those diseases that are transmitted by insects and arthropods?

Our work on these questions combines approaches in the fields of epidemiology, microbiology, molecular biology, mathematical and statistical modeling, public health, animal agriculture and systems thinking.