Diagnostic laboratory parasitology--a stepping stone to medical research in tropical Africa.

African countries can concentrate mainly on operational and problem-solving type of medical research using as a basis routine diagnostic laboratory parasitology which can be elevated to research level by incorporating all relevant techniques backed by statistically-based programming. Because of high incidence of parasitic infections and the peculiar host-parasite relationship, co-operation between all departments of any major hospital will be required to deal with the diseases due to them. Longitudinal studies on some parasites will enable generalisation and specific views to be formed on some infections. Multiplicity and wide variety of available techniques offer several research possibilities of clinico-pathological and epidemiological significance. Routine laboratory-based research offers the right environment for training various types of laboratory workers from technicians to medical parasitologists, through on-the-job training on techniques, investigative studies and research, backed by formal lectures and practicals at various levels. Trainee medical parasitologists can obtain higher degrees locally or abroad. The research can be organised around micro and mini research units. This approach is cost-beneficial because it minimises administrative difficulties and so avoids wastage. The results can be used to monitor impact of national development on parasitic infection prevalence and to formulate a policy on parasitic disease management.