Age distribution of reported dengue cases and 2019 seroprevalence estimates by age group for each US state and territory assessed.

Age distribution of all locally reported, confirmed and probable dengue cases in Hawaii (HI, A), Florida (FL, B) and Guam (GU, C) in 2010–2019 (colored bar) and age distribution of the population in these respective territories (grey bars, 2010 census) (left panel) and age distribution of 2019 seroprevalence estimate obtained from the fit of model S (reported cases are secondary infections only), with corresponding 95% credible intervals (shaded area, right panel). Florida contains the additional age distribution of imported cases. Detailed tables on years with reported dengue cases are available in S1 Document. Y-axis scale on the left panels differ for each location. Map shapefiles for Hawaii and Florida were obtained from the urbnmapr [57] and maps [58] R packages, respectively. Base layers for Guam were retrieved from the US Census Bureau TIGER/Line files [59].