[Seroepidemiologic study on hemorrhagic fever with renal syndrome virus in the migration areas of the Three-Gorges Reservoir Chongqing, Region, Yangtze River].
OBJECTIVE
To ascertain both the immune level and latent infection status among the migrants from the Three-Gorge Reservoir, Chongqing Region.


METHODS
Epidemiological survey and seroepidemiologic study were performed on the spots. Sera HFRSV-IgG antibody of migrations was detected with the indirect immunofluorescent assay technique(IIFAT).


RESULTS
Three in 5 migration areas were seral HFRSV-antibody-positive, i.e. Baitao Town of Fuling Section, Wansheng Village of Fengjie County and Dachang Town of Wushan County, which not only will be evacuated, but also be taken for relocation. However the antibody titer was not high, with positive rates of HFRSV-IgG Ab 0.9%, 3.3% and 3.5% respectively. The other two areas attributed to relocation, HFRSV-IgG-antibody were negative.


CONCLUSIONS
This article confirmed that covert infection rate of HFRS in 5 migration areas was not high. The immune level remained low. Hence, it is very necessary to enhance the immunity of the immigrants.
Yang
S
S
Department of Epidemiology, Third Military Medical University, Chongqing 400038, China.
Liu
J
J
Song
J
J
D002681:China / Q000453:epidemiology; D005260:Female; D018063:Hantaan virus / Q000276:immunology*; D006480:Hemorrhagic Fever with Renal Syndrome / Q000453:epidemiology* / Q000276:immunology; D006801:Humans; D008297:Male; D016036:Seroepidemiologic Studies