Figure 2.

Proportion of population living in regions with outbreaks reported at the sub-national administrative units (%). The proportion of population living in regions with outbreaks reported at sub-national administrative units for each month between January 1, 2010 and January 31, 2020. The areas in grey represent time periods covered by daily and weekly cholera reports. To combine the population at different spatial levels, we added the population of different regions together, and when an outbreak was reported at multiple spatial units, the population of the highest spatial unit was used to represent the population affected by that outbreak.