The conclusion of this passage is that bilharzia is a widespread and serious parasitic disease that affects many people in developing countries, particularly poorer communities. It is transmitted through contaminated water and can cause long-term health problems, but is not always fatal. While treatment is possible, it can be expensive and does not always prevent reinfection. However, the work of Dr. Aklilu Lemma in Ethiopia may offer a promising solution in the form of a locally occurring plant that can be used to produce a pesticide for bilharzia control on a community scale. This may make bilharzia control more feasible and affordable in Ethiopia and potentially other countries as well.