福建省部分农村地区风疹抗体分布模式及流行类型的研究

Rescarchment of Distribution Pattern of Rubella Virus Antibody and Epidemic Type

应用微量血凝抑制试验检测福建省龙海和尤溪县正常人血清1068份。风疹血凝抑制抗体阳性率为81.37％,抗体GMT为1:41.2。应用可逆性催化模型拟合调查资料,抗体滴度>1:32,X^2检验适合度良好,说明抗体滴度1:32可能是一个与风疹显性感染相联系的统计指标;从而推论本次调查地区风疹呈地方性流行。

A total of 1068 human sera from Long Hai and Yiu Qi counties, Fujian province was examined for rubella virus antibody with HI test. The positive rate of HI antibody was 81.37% and GMT 41.2.A reversible calalytic model was studied with which the age-spe- cific prevalence of ruballa HI antibody was analysed. The fitness of this model was che- eked by using X^2 test. The model was fitted reasonably when the titre>1:32 was used. The results indicated that the titre of 1:32 may be a statistical indicator associated with appa- rent infection of rubella virus and inferred that rubella infection inthese regions presen- ted endemic epidemic.