钩虫及其它肠道线虫病重度流行区防治效果观察

内江县永安乡太平寺村系钧虫及其它肠道线虫病重度流行区。１９８５年开始使用广谱驱肠虫药物每年冬季治疗一次，连续三年，结合广泛的卫生宣传教育，使该地区钧虫的感染率、感染度、皮疹率和鞭虫的感染率均显著下降。随后停止治疗并进行５年追踪观察，发现钩虫及鞭虫的感染率及钧虫的感染度有所回升，但远未回复到治疗前的水平，且无钩虫现症病人，有效地保护了村民，尤其是儿童的健康。根据我省农村的经济状况，仿照此方案有计划地开展肠道线虫病的治疗，对控制重流行区的肠道线虫感染具有重要意义。

EFFECT OF CONTROLLING ANCYLOSTOMIASIS AND OTHER HELMINTHIASIS IN HYPERENDEMIC AREA, SICHUAN

Taipingsi Village, Yong' an Township, Neijiang County, with a population of 1184 (322of them were children), had been one of the hyperendemic areas of ancylostomiasis, ascariasis,and trichuriasis in Sichuan. From 1985 to 1992, a 'demonstration area for controlling mainly ancylostomiasis supported by UNICEF was set up. After giving priority to mass chemotherapy in non-transmission winter season for the first 3 successive years, comprehensive measures such as wide spread and profound health education and personal protection had been taken for the whole period. The infection rate, intensity and ground itch rate of children have been reduced from 85. 5% (271/371), 708 EPG, and 52. 1% (165/317) to 32. 1%, 182 EPG and 11. 8% respectively, and that of villagers reduced from 92. 9% (1036/1115), 1443 EPG and 63. 9% (655/1025) to 60.6%, 367 EPG and 38.7% respectively.In addition, the infection rates of trichuriasis among children and villagers have been re-duced from 84. 9% (267/317), and 88. 3% (984/1115) to 40.1% and 36.7% respectively.Acute patient with ancylostomiasis has not been found since the last seven years. The progress indicated that mass chemotherapy combined with health education played an important role in controlling hookworm disease.