It was supposed that the Program Committee had an ulterior motive in suggesting a symposium on schistosomiasis. With this in mind the panel's approach has been directed primarily toward the control of the disease. Since I recently had the opportunity to express my views on this problem (McMullen, in press), the introductory remarks will be brief so that the members of the panel will have as much time as possible.
Schistosomiasis, like yellow fever, typhus and malaria, is an extremely complicated bio-economic problem. At present, however, its control has not reached the same degree of proficiency. To attain this may require the efforts of experts in the fields of agriculture, biology, chemistry, ecology, education, engineering, epidemiology, malacology, medicine and public health. Statistically our best chance of success is to have representatives from each of these fields combining their efforts to solve this problem.