Dr Rachel Sippy is an infectious disease epidemiologist from the United States. She is interested in disease seasonality, and the relative contributions of climate and non-climate factors in shaping seasons. Non-climate factors can include human behaviours, population immunology, environment, and vector abundance, among others. She principally focuses on dengue virus, as well as other vector-borne illnesses. Dr Sippy's work involves complex datasets of human, viral, vector and environmental data; she is interested in the spatial scales or contexts in which these factors have the greatest influence on dengue disease and outbreaks. At the University of Cambridge, she is a postdoctoral researcher with the Pathogen Dynamics Group in the Department of Genetics, using viral genome data to study the long-term diversity and evolution of dengue in Thailand.