Maikai B V, Umoh J U, Ajanusi O J, Ajogi I
Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria.
J Helminthol. 2008 Jun;82(2):113-8. doi: 10.1017/S0022149X07874220. Epub 2008 Jan 17.
Environmental and socio-cultural variables influencing the distribution of helminth eggs in 608 soil samples were studied in 14 playgrounds that differ in socio-economic status in Kaduna metropolis, Nigeria, using a modified sieving method and a sucrose flotation medium of specific gravity 1.27. Helminth eggs were found in 62% of the soil samples and the distribution was as follows: Toxocara spp. 50.4%, Taenia spp./Echinococcus spp. 36.9%, Dipylidium caninum 26.3%, Ancylostoma spp. 9.0%, Ascaris spp. 7.2%, Trichuris spp. 3.7% and Ascaridia spp. 1.9%. A higher prevalence (68.1%) was recorded during the dry harmattan period while in the rainy period the rate was 58.1%. Mean egg densities ranged from 1.11 +/- 0.32 to 3.92 +/- 2.47 in areas moderately rated. Samples from site 14, which was highly rated, were more contaminated (78.1%) than those collected from other sites, while the intensity of contamination (14.0%) was more in moderately rated site 4 than in the rest of the sites. There were significant associations between the prevalence of helminth eggs and rainy period of the study (odds ratio (OR) = 0.38; 95% confidence interval (CI) on OR: 0.20 0.05). This study shows that the period of study, the presence of dogs and vegetation influence the prevalence of helminth eggs in soil in Kaduna metropolis.
在尼日利亚卡杜纳市14个社会经济地位不同的游乐场中，采用改良筛分法和比重为1.27的蔗糖浮选介质，研究了影响608份土壤样本中蠕虫卵分布的环境和社会文化变量。在62%的土壤样本中发现了蠕虫卵，其分布如下：弓蛔虫属50.4%，带绦虫属/棘球绦虫属36.9%，犬复孔绦虫26.3%，钩口线虫属9.0%，蛔虫属7.2%，鞭虫属3.7%，禽蛔虫属1.9%。在干燥的哈马丹季节，患病率较高（68.1%），而在雨季，患病率为58.1%。中等评级地区的平均卵密度范围为1.11±0.32至3.92±2.47。评级较高的14号场地的样本污染程度（78.1%）高于其他场地采集的样本，而中等评级的4号场地的污染强度（14.0%）高于其他场地。蠕虫卵的患病率与研究的雨季之间存在显著关联（优势比（OR）=0.38；OR的95%置信区间（CI）：0.20 0.05）。这项研究表明，研究时期、狗的存在和植被会影响卡杜纳市土壤中蠕虫卵的患病率。
