Moreover, the cost of the annual treatment recommended by the World Health Organization is often less than $0.50, and much less in Asia, with delivery carried out by communities or through schools. The increase in treatment has been spectacular – more than 500 million people in 51 countries treated for elephantiasis in 2007, and 60 million in 19 countries have been treated for river blindness.
世界卫生组织推荐的年度治疗费用一般低于0.50美元，而在亚洲则更低，药品通过社区或学校发放。受治疗人数的增长非常可观——2007年，51个国家超过5亿人接受了象皮病治疗，19个国家的6000万人接受了河盲病治疗。几内亚病的流行现在只限于四个国家，麻风病则只限于六个国家。