Figure 3.
The changing spatiotemporal pattern of 2019 dengue epidemic in Bhutan at the subdistrict level. The epidemic initially started with six subdistricts as shown in the first panel in the top-left map (a). These subdistricts have also reported dengue in the past. The epidemic spread to 8, 22, and 8 new subdistricts in weeks 26–28 (b), 29–34 (c), and 35–49 (d), respectively, that summed to 44 subdistricts at the end.