[Epidemiological characteristics of Japanese encephalitis in Shanghai].
OBJECTIVE
To understand the epidemiological characteristics of Japanese Encephalitis in Shanghai and to provide evidence for preventing JE.


METHODS
Epidemic characteristics, JEV antibody in healthy population and swine infection rate in Shanghai were analyzed by methods of field survey, serology and molecular biology.


RESULTS
JE incident rate in Shanghai was 0.077/100,000 in 2006; and 0.129/100,000 in 2007. Antibody positive rate before JE epidemic fastigium was 60.39%; postive rate after epidemic was 85.44%. JE IgG positive rate was 26.92% in 3-month swine and 14.86% in swine for sale; JE Gene in mosquito was analyzed for type 1.


CONCLUSIONS
The JE prevalence rate is relatively low in Shanghai. JE antibody positive rate is high in Shanghai population. Swine as a media is infected by JE virus. The JE virus in mosquitoes belongs to genotype 1.
Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China.
Yan-ting
YT
Li
Yi-Yi
YY
Zhu
Bi-hong
BH
Jin
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D004664:Encephalitis Virus, Japanese / Q000145:classification / Q000235:genetics; D004672:Encephalitis, Japanese / Q000453:epidemiology* / Q000821:virology; D005260:Female; D005814:Genes, Viral / Q000235:genetics; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D010802:Phylogeny; D055815:Young Adult