Fig. 4: Ten-year incidence category of cholera burden in Africa across 2011–2020.
From: Geographical shifting of cholera burden in Africa and its implications for disease control
a, Alluvial plot depicting changes in the number of people living in ADM2 units according to their 5-year incidence categories in 2011–2015 (left) and 2016–2020 (right), adjusted for 2020 population size. The flow colors indicate the 10-year (2011–2020) incidence category. The flow-specific labels indicate the number of people in ADM2 units according to their 2020 population size. b, Continent-wide map showing assignment of 10-year incidence categories to ADM2 units by color (see Methods for definition of 10-year incidence categories). The inset is a visual legend that translates the cross of two 5-year incidence categories into the 10-year incidence category. Gray represents ADM2 units with sustained low incidence. Only modeled countries are displayed in the map. B, billion; M, million.
