| aortic onchocercosis and elaeophorosis in traditional tsz-cattle in tabora (tanzania): prevalence and pathology. | onchocerca armillata was found in 3838 (95.4%) and elaeophora poeli in 70 (1.7%) out of 4025 samples of aortas collected from cattle slaughtered at tabora in tanzania during the calendar year 1988. gross lesions of the affected aortas varied from mild to severe, characterised by parasitic tunnels, nodules and corrugated calcified ridges on the aortic wall. histological sections revealed changes as a result of tissue reaction against the parasites which were embedded into the intima of affected a ... | 1990 | 2143330 |