[Studies on inapparent infection of epidemic hemorrhagic fever in population of Shanxi Province].
Detection for IgG antibody to virus of epidemic hemorrhagic fever (EHF) in sera from healthy people in Shanxi province were carried out by IFAT. Two hundred thirty eight of 4873 serum samples were antibody-positive. Total positive rate was 4.88%. The inapparent infection rate of EHF in residents of endemic areas was 5.48%. There was a statistically significant difference of epidemic strength among different counties. Based on the analysis of antibody titers of positive sera, value of upper limit (P95) of antibody titre for inapparent infection was 1:315. It was suggested that the antibody titre of 1:320 by IFAT in a single sample of serum from patient with clinical manifestations of EHF might be used as a criteria for specific diagnosis of EHF.
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D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis; D002353:Carrier State / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006476:Orthohantavirus / Q000276:immunology; D006480:Hemorrhagic Fever with Renal Syndrome / Q000453:epidemiology*; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007223:Infant; D008297:Male; D008875:Middle Aged
D000914:Antibodies, Viral; D007074:Immunoglobulin G