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目的以血清学检测了解我国旋毛虫病的流行现状,为制定旋毛虫病防治对策提供依据。方法采用分层随机抽样方法,对受检居民进行问卷调查和ELISA血清抗体检测。结果在河南等省10个省(市、区)调查93239人,阳性3149人,阳性率3.38%。各地人群旋毛虫血清抗体阳性率差异有显著性(χ2=1699.28,P<0.0001),以云南省最高(8.45%),辽宁省最低(0.26%)。不同年龄组人群血清抗体阳性率差异有显著性,以30岁～组最高(3.81%),0～岁组最低(1.97%)(χ2=98.96,P<0.0001)。血清抗体阳性率无性别差异(χ2=1.23,P>0.05)。单因素、多因素回归分析显示,年龄、生食猪肉及使用不洁砧板是主要流行因素。结论旋毛虫病的流行形势依然严峻,其感染与生活及饮食习惯有关,应加强卫生检疫和防治工作。
Objective To understand the prevalence of Trichinosis in China by serological test and provide evidence for the development of trichinellosis control strategies. Methods A stratified random sampling method was used to survey the residents and ELISA serum antibody. Results Ninety-three thousand nine hundred and thirty-nine people were investigated in 10 provinces (cities and districts) of Henan province, with 3149 positives, the positive rate was 3.38%. The seropositive rate of Trichinella spiralis in different regions was significantly different (χ2 = 1699.28, P <0.0001), the highest in Yunnan (8.45%) and the lowest in Liaoning (0.26%). The positive rate of serum antibody in different age group was significant difference, the highest in group 30 (3.81%), the lowest in group 0 (1.97%) (χ2 = 98.96, P <0.0001). The positive rate of serum antibody had no gender difference (χ2 = 1.23, P> 0.05). Univariate and multivariate regression analysis showed that age, raw pork and unclean chopping board were the main epidemic factors. Conclusion The prevalence of Trichinosis is still severe. The infection is related to life and dietary habits. Health quarantine and prevention should be strengthened.