This article reports surveillance of vector of Japanese B encephalitis (JE). The results showed that the A. sinensis and C. theileri were predominant species in Er Yuan area. 8 strains JE virus were isolated from the A. sinensis, C. theileri C. bitaeniorhynchus and C. tri taeniorhyn hus. It was significant relating to the JE and A. sinensis, C. tritaeniohynchus. . The highest infectious period for JE was from September to October.
Chinese Journal of Zoonoses
Japanese bencephalitks, Vector, Surveillance.