Christine Kreuder Johnson is a Professor of Epidemiology and Ecosystem Health and Director of the EpiCenter for Disease Dynamics at the University of California, Davis, School of Veterinary Medicine.  Her work is committed to transdisciplinary research to characterize the impacts of environmental change on animal and human health and guide public policy to mitigate pandemic threats.  She was elected to the National Academy of Medicine for pioneering approaches to surveillance of emerging diseases at the animal-human interface and investigating environmental and climate-related drivers for spillover of viruses.  She is also an Honorary Fellow of the American Association for the Advancement of Science.