| seasonal prevalence of bovine trypanosomosis in a tsetse-infested zone and a tsetse-free zone of the amhara region, north-west ethiopia. | during a period of four consecutive years, trypanosomosis surveys were conducted in a tsetse-infested and tsetse-free area of the amhara region of north-west ethiopia. in each study area randomly selected communal cattle were sampled and their blood was investigated using parasitological diagnostic methods. at the same time the population of biting flies was sampled. the monthly average prevalence of trypanosome infections in cattle did not differ significantly between study areas. in both study ... | 2004 | 15732457 |
| a comparative longitudinal study of bovine trypanosomiasis in tsetse-free and tsetse-infested zones of the amhara region, northwest ethiopia. | a study was conducted to determine the incidence of trypanosome infections in cattle in tsetse-free and tsetse-infested zones of the amhara region of northwest ethiopia. a total of six sentinel herds were established and the cattle observed during a period of 8 consecutive months. the prevalence of seropositive cattle was high in both the tsetse-free and tsetse-infested zones. the average monthly incidence of trypanosome infection, determined using molecular diagnostic tools, was 20.9% and 25.7% ... | 2006 | 16675127 |