Michael Walsh is a landscape epidemiologist at the Sydney School of Public Health and the Sydney Institute for Infectious Diseases, University of Sydney. He is interested in the complex ecologies of zoonotic pathogens and their interaction with hosts, vectors, and environments to shape risk. As such, he combines methods from spatial and infectious disease epidemiology with applications of biogeography, community ecology, and macroecology to employ transdisciplinary One Health approaches to zoonosis inference, prediction, surveillance, and prevention. Michael is particularly interested in the ways in which interactions between wildlife, domesticated animals, and humans in anthropogenic landscapes facilitate pathogen spillover from primary reservoir hosts to novel hosts. Michael has 23 years’ experience as an epidemiologist and is currently investigating zoonoses at the wildlife-livestock-human interface in India, and Ross River virus spillover in Australia. Michael has taught infectious disease epidemiology and epidemiological methods for 19 years on the faculties of New York University, the State University of New York, Downstate, and, currently, at the University of Sydney.