3van den Hurk A F, Ritchie S A, Mackenzie J S. Ecology and geographical expansion of Japanese encephalitis virus [ J ]. Annu Rev Entnmo1,2009,54 : 17 -35.
4Konno J, Endo K, Agatsuma H, et al. Cyclic outbreaks of Japanese encephalitis among pigs and humans [ J]. Am J Epidemiol, 1966,84 : 292-300.
5Xin Y Y,Ming Z G,Peng G Y,et al. Safety of a live-at- tenuated Japanese encephalitis virus vaccine (SA14-14- 2) for children [J]. Am J Trop Med Hyg, 1988,39: 214-217.