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目的 :加强登革热的监测 ,调查疫区内登革热的流行状况。方法 :采集发热病人及疫区内羊、猪血清 ,应用间接免疫荧光试验检测血清中特异性抗登革热IgG和IgM抗体。 结果 :儋州市采集的发热病人血清IgG抗体阳性率为 41.1% ,IgM抗体阳性率为8.9% ;儋州市、澄迈县采集的羊、猪血清IgG阳性率分别为42 .2 %和 2 3 .3 %。结论 :健康人群中存在隐性感染者 ,是引起暴发流行的重要隐患 ,该地区存在登革热流行的潜在危险。
Objective: To intensify the monitoring of dengue fever and investigate the prevalence of dengue in the epidemic area. Methods: Serum samples were collected from febrile patients and goat and swine sera. Indirect immunofluorescence assay was used to detect serum anti-dengue IgG and IgM antibodies. Results: The positive rate of serum IgG in febrile patients collected in Pizhou was 41.1% and the positive rate of IgM was 8.9%. The positive rates of serum IgG in sheep and pigs collected in Pizhou and Chengmai counties were 42.2% and 2 3 .3%. CONCLUSIONS: The presence of latent infection in healthy people is an important hidden danger of outbreak. There is a potential danger of dengue epidemics in this area.