论文部分内容阅读
利比里亚中部是埃及血吸虫病和曼氏血吸虫病高度流行区,对5个村庄的人群及螺类宿主调查2年。在其中的3个村庄的主要传播血吸虫病地段,应用氯硝柳胺杀螺,并结合有76～90%污染指数的对象人群的群众性治疗。以另两个村庄作为对照,在实验期间流行指数仍然稳定或略有增加。在仅有埃及血吸虫感染的一个村,用敌百虫12.5mg/kg×3治疗,每次间隔3周,第2次和第3次愿意接受治疗者很少,而在群众性治疗后,虫卵减少50%。使用杀螺剂后,
Central Liberian is a highly endemic area for schistosomiasis and Schistosoma mansoni, and populations and spirochaetes in 5 villages are surveyed for 2 years. In three of the major villages where schistosomiasis was spread, niclosamide was used in combination with mass treatment in target populations with a contamination index of 76-90%. In contrast to the other two villages, the epidemic index remained stable or slightly increased during the experiment. In a village infected with only Schistosoma japonicum, trichlorfon 12.5 mg / kg x 3 was treated at intervals of 3 weeks, while the second and third were less likely to receive treatment, whereas after mass treatment the worm 50% reduction in eggs. After using the molluscicide,