Dispersal characteristics of genotype 1 JEV based on phylogenetic analysis.

<p>Gray shadow presents the location of JEV strains used in this study; emboldened circle represents southern Asia endemic cycle established in the JEV transmission source area; red circles presented as dashed lines, intact lines circle and square dot lines represent west Asia, central Asia and east coastal Asia JEV endemic cycles, respectively; blue boxes presented as dashed lines, intact lines and square dots represent bird migration routes in Asia and they coincide with JEV endemic cycles; green dotted lines illustrate the potential dispersal directions of JEV in the future. CN, China; JP, Japan; KR, South Korea; IN, India; VN, Vietnam; TH, Thailand; KH, Cambodia; MY, Malaysia; ID, Indonesia; AU, Australia.