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在四川省的川西高原、盆周山、丘陵、平原等4种地形9个县18468人的肠道寄生虫调查中共查见寄生虫19种,其中线虫7种、原虫8种、绦虫和吸虫各2种。寄生虫总感染率为80.6％。4种地形的肠道寄生虫感染率和感染1—5种以上寄生虫的累积阳性率随上述4种地形依次升高,形成明显的梯度差。 应用G统计和二项分布拟合检验对2743个粪检资料完整的家庭中蛔虫、鞭虫、钩虫、贾第虫、人酵母菌及结肠内阿米巴6种寄生虫阳性人数的分布进行家庭聚集性分析,结果一致表明:上述6种肠道寄生虫的分布有明显的家庭聚集现象,提示:可能由于每个家庭内生产、生活等共同因素作用,这几种人体肠道寄生虫感染均具有家庭聚集性。
A total of 19 species of parasites were detected in the intestinal parasites of 18468 people in 9 counties including Sichuan Basin, Sichuan Basin, hills, hills and plains. There were 7 nematodes, 8 protozoans, 2 tapeworms and 2 flukes Species. The total parasitic infection rate was 80.6%. The infection rates of intestinal parasites and the cumulative positive rates of parasites of 1-5 kinds of topographies in four kinds of terrain were successively increased with the above four kinds of terrain, forming a significant gradient difference. Using G statistics and binomial distribution fitting test, the distribution of positive numbers of 6 parasites in 2743 complete excrement sampling families of roundworms, whipworms, hookworms, giardia, human yeasts and E. coli Aggregation analysis, the results show that: the distribution of the six kinds of intestinal parasites obvious aggregation of the family, suggesting that may be due to each family production, life and other common factors, these kinds of human intestinal parasitic infections were Family aggregation.