Fig. 4

Spatial patterns of bacillary dysentery morbidity in China, 2004–2014. a Average incidence by province, 2004–2014. b–d Average incidence by province for three time periods (2004–2006 [b], 2007–2009 [c], and 2010–2014 [d]). Average incidence by province for different time periods was calculated by dividing the total number of cases in each time period by the corresponding population and multiplying by 100,000