Fig. 4From: Evaluating neighborhood structures for modeling intercity diffusion of large-scale dengue epidemicsMonthly number of dengue cases in a 2014 and b 2015. In 2014, the period of Jan.–Sep. is defined as pre-epidemic and Oct.–Dec. as epidemic; in 2015, the period of Jan.–Aug. is defined as pre-epidemic and Sep.–Dec. as epidemic stageBack to article page