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目的探讨社区人群蛔虫感染调查中粪检与驱虫结果的关系。方法选择江西省南昌县塘南乡张溪村为试点,采用Kato Katz法粪检,双羟萘噻嘧啶化疗驱虫后收集虫体,对两者结果进行比较分析。结果共检测1 019名村民,人群实际蛔虫感染率为30.23%,其中粪检阳性率为20.41%,淘虫阳性率为23.75%。淘虫阳性感染者平均虫荷2.64条,虫荷数高的感染者所占比例较低。感染者虫荷数越多,检出虫卵的概率越高,当感染者寄生7条以上蛔虫,虫卵检出率为100%。粪检虫卵假阴性者中,感染雄虫者占61.00%,感染雌虫幼虫并有或无雄虫者占7.00%,感染成熟雌虫者占32.00%。人群粪检虫卵漏检率为32.47%。其中,因不排虫卵(生物学)漏检率为22.08%,Kato Katz法(方法学)漏检率为10.39%。结论人群蛔虫感染调查中粪检阳性率较实际感染率偏低,粪检虫卵检出率与感染虫荷数有关。
Objective To investigate the relationship between fecal seizures and deworming in surveys of roundworms in community population. Methods Zhangxi Village, Tangnan Township, Nanchang County, Jiangxi Province was chosen as the experimental site. Kato Katz fecal sequestration and bileadrin chemotherapy were used to collect worms. The results of the two methods were compared and analyzed. Results A total of 1 019 villagers were detected. The actual infection rate of roundworm in the population was 30.23%, of which the positive rate of stool examination was 20.41% and the positive rate of nosocomial infection was 23.75%. The average number of insects infected with Amoebae was 2.64, with a lower proportion of those infected with high numbers of insect worms. The greater the number of infected worms, the higher the probability of detecting the eggs, when the infected parasites more than 7 roundworms, egg detection rate was 100%. Fecal insects false-negative eggs who infected 61.08% of the male, infected female larvae with or without the male accounted for 7.00%, infected with mature female accounted for 32.00%. The crowd fecal insects omission rate was 32.47%. Among them, the rate of undetected eggs (biology) undetected rate was 22.08%, Kato Katz method (methodology) undetected rate was 10.39%. Conclusion The positive rate of fecal examination in the crowd of Ascaris infection is lower than the actual infection rate, and the detection rate of fecal insects is related to the number of infected worms.