Fig. 3

The geographic distribution of dengue outbreak in Guangzhou, 2014. a shows the location of Guangzhou city by red dot in China. b is the enlargement of Guangzhou, showing the incidence map of the epidemic. The more deepening the red color, the higher the incidence rate. c demonstrates the spatial evolution by case spot map in different time, including June 21, August 10, September 9, and October 29