Space-time clusters of JE defined by using spatial scan statistic, mainland China^*.

*Significant clusters with P<0.01;
<$>\scale 60%\raster="rg1"<$>1: Primary cluster;
#2–5: Secondary clusters; E_Minor: Semiminor axis of ellipse; E_Major: Semimajor axis of ellipse; E_Angle: the angle between the horizontal line and the semimajor axis of the ellipse; E_Shape: E_Major: E_Minor; No. Counties: number of counties within clusters; No. Obs: number of observed cases; No. Exp: number of expected cases; LLR: log likelihood ratio; RR: relative risk for the cluster compared with the rest of the country.