Temporal and spatial trend of
in China in 1997–2014. (A) Mosquitoes were sampled in Shandong, Jiangsu, Anhui, Shanghai, Hubei, Henan and Jiangxi (data in Table 3). (B) Mosquitoes were sampled in Liaoning, Shaanxi, Guizhou, Sichuan, Chongqing, Yunnan, Hainan, Fujian, Guangdong, and Guangxi (data in Table 4). See Figure 1 for sampling sites on the map.