Before 2009, Echinococcus multilocularis had never been diagnosed in a dog in Canada. Since then, many cases have been identified in dogs, humans, and wildlife across the country. In this webcast, Dr. Andrew Peregrine will highlight key developments from the past four years in Canada and the USA, including the latest data on the geographic distribution of alveolar echinococcosis (AE) and intestinal infections in dogs, AE cases in humans, and the prevalence of intestinal infections in wild canid populations. The predicted impact of climate change on the future risk of infection across North America will also be discussed.