Free Content Control of human African trypanosomiasis: trap and odour preference of tsetse flies (Glossina morsitans submorsitans) in the upper Didessa river valley of Ethiopia

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Ethiopia is one of the endemic countries for Human African Trypanosomiasis (HAT) as over 100 000 people are at risk of having the disease. The control of HAT using odour preference of tsetse flies (Glossina morsitans submorsitans) was studied in upper Didessa river valley of Ethiopia. No information exists on the effectiveness of attractants for these species of tsetse flies in Ethiopia. Three attractants and their combinations namely: acetone, octenol, cow urine, acetone + octenol, acetone + octenol + cow urine, were evaluated using biconical and NGU traps for their efficacy as a first step in developing a sustainable community-based HAT control initiative. The biconical traps baited with acetone, octenol or cow urine, or when combined, were more effective in catching G. m. submorsitans than the NGU traps (P < 0.05). However, the NGU traps caught more female tsetse flies than the biconical traps (P < 0.05). The acetone, octenol and cow urine combination was the most effective in attracting tsetse flies in both the biconical and NGU traps. Acetone was the best attractant while octenol was the least effective. Cow urine showed great promise for possible use in community-based HAT control activities, especially urine that has been kept for several days. The use of cow urine in HAT control in Ethiopia is likely to succeed in the future because of its sustainability.

Keywords: Human African Trypanosomiasis (HAT); NGU; biconical; odour attractants; traps; tsetse

Document Type: Research Article


Affiliations: 1:  Department of Microbiology, Immunology and Parasitology, Faculty of Medicine, Addis Ababa University, Addis Ababa, Ethiopia 2:  ICIPE-Ethiopia Collaborative Project, Addis Ababa, Ethiopia 3:  Department of Biology, Addis Ababa University, Addis Ababa, Ethiopia 4:  Department of Biology, Montgomery College, Takoma Park, MD, USA

Publication date: June 1, 2004

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