世行贷款中国血吸虫病控制项目的总策略要求：在高度流行区（感染率＞15％）实行群体化疗，而在中、低度流行区（感染率wt15％）实行选择性化疗。经过5年的防治工作，原高度流行区，居民感染率已经降至128％，但5年内的平均化疗覆盖率为65．5％，依从性难以达到95％的要求。事 The general strategy of the World Bank-financed China Schistosomiasis Control Program requires group chemotherapy in highly endemic (infection> 15%) and selective chemotherapy in medium and low prevalence (infection rate wt 15%). After 5 years of prevention and treatment work, the original infection rate of the epidemic area has dropped to 128% in the original highly endemic area. However, the average chemotherapy coverage rate in 65 years is 65.5% within 5 years, and it is difficult to meet the 95% compliance requirement. thing