Fig. 1From: Swimmer’s itch in Canada: a look at the past and a survey of the present to plan for the futureLocations of Swimmer’s Itch Reports Across Canada and the U.S.. Each swimmer’s itch report is represented by a black dot on the map. As many reports are from the same location, the heatmap represents the level of stacking of these reports. Red and white areas represent more reports than blue areas. Single reports have no surrounding colourBack to article page