| natural progression of oesophagostomum bifurcum pathology and infection in a rural community of northern ghana. | an estimated 250,000 people in northern ghana and togo are infected with the intestinal helminth parasite oesophagostomum bifurcum, as detected by stool cultures. clinical disease caused by o. bifurcum is responsible for about 50 cases per year at the region's central hospital, and presents as painful abdominal masses: inflammatory colonic nodules containing live juvenile stages of the helminth. in individuals living in villages highly endemic with o. bifurcum infection, colonic pathology visibl ... | 2001 | 11491001 |