Laboratory-confirmed infection with Mycobacterium ulcerans is currently notifiable to health departments in several jurisdictions. Accurate surveillance is imperative to understanding current and emerging areas of endemicity and to facilitate research into a neglected tropical disease with poorly-understood transmission dynamics. The state of Victoria currently reports some of the highest numbers of M. ulcerans cases in the world each year, with 340 cases notified in 2018 (an incidence of 5.5 per 100,000 population). In May 2019, a group of clinical, laboratory and public health experts met to discuss a new case definition for the surveillance of M. ulcerans disease in Victoria, incorporating clinical and epidemiological elements. The new case definition supports important public health messaging and actions for residents and visitors to popular tourist areas in Victoria.
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