Chandiwana S K, Taylor P, Clarke V D
Blair Research Laboratory, Causeway, Harare, Zimbabwe.
Ann Trop Med Parasitol. 1988 Apr;82(2):163-73. doi: 10.1080/00034983.1988.11812224.
Surveys for schistosomiasis of 2498 people of various ages from 22 villages in northeast Zimbabwe are reported. A high prevalence of Schistosoma haematobium (53.1%) and a medium prevalence of S. mansoni (17.5%) were found. Schistosoma haematobium prevalence among males was significantly higher than among females. Age prevalence curves for both schistosome species showed a typical pattern with the peak in the ten to 20 years age group, which is also the age group with the highest potential of contaminating water with excreta. Snail surveys at 12 local sites showed the presence of Bulinus globosus and Biomphalaria pfeifferi. Both species were found shedding cercariae, and snail infection rates showed a focal distribution which could be related to the prevalence of infection in the human population.
报告了对津巴布韦东北部22个村庄2498名不同年龄段人群的血吸虫病调查情况。发现埃及血吸虫的感染率很高（53.1%），曼氏血吸虫的感染率为中等（17.5%）。埃及血吸虫在男性中的感染率显著高于女性。两种血吸虫的年龄感染率曲线呈现典型模式，在10至20岁年龄组达到峰值，而该年龄组也是排泄物污染水源可能性最高的年龄组。在12个当地地点进行的钉螺调查显示存在球拟钉螺和费氏双脐螺。发现这两种钉螺均能逸出尾蚴，钉螺感染率呈现局部分布，这可能与人群中的感染率有关。
