For the new millennium: control of helminth diseases throughout the world

In the latter half of this century there has been a dramatic change in the treatment of helminthic infections. Two factors have contributed to this: an understanding of the major differences between helminths and other infectious agents, and the development of effective low-cost, single-dose, broad spectrum drugs. A program of administration of these drugs to school-aged children in developing countries is now being implemented and will result in a significant improvement in their health at a crucial time in their growth and development.