| Particle and Fibre Toxicology | |
| Cost analysis of options for management of African Animal Trypanosomiasis using interventions targeted at cattle in Tororo District; south-eastern Uganda | |
| Alexandra P.M. Shaw4  Susan C. Welburn2  Charles Waiswa3  John D. Kabasa1  Walter O. Okello2  Dennis Muhanguzi2  | |
| [1] Department of Biosecurity, Ecosystems & Veterinary Public Health, School of Biosecurity, Biotechnical and Laboratory Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda;Division of Infection and Pathway Medicine, Centre for Infectious Diseases, School of Biomedical Sciences, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor’s Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK;Department of Pharmacy, Clinical and Comparative Medicine, School of Veterinary Medicine and Animal Resources, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda;Avia-GIS, Risschotlei 33, Zoersel, B-2980, Belgium | |
| 关键词: Theileria parva; Trypanosoma; Tick-borne diseases; Tsetse control; Trypanocides; Restricted insecticide application protocol; Human African trypanosomiasis; Cost; Cattle; African animal trypanosomiasis; | |
| Others : 1222176 DOI : 10.1186/s13071-015-0998-8 |
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| received in 2014-12-18, accepted in 2015-07-09, 发布年份 2015 | |
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【 摘 要 】
Background
Tsetse-transmitted African trypanosomes cause both nagana (African animal Trypanosomiasis-AAT) and sleeping sickness (human African Trypanosomiasis - HAT) across Sub-Saharan Africa. Vector control and chemotherapy are the contemporary methods of tsetse and trypanosomiasis control in this region. In most African countries, including Uganda, veterinary services have been decentralised and privatised. As a result, livestock keepers meet the costs of most of these services. To be sustainable, AAT control programs need to tailor tsetse control to the inelastic budgets of resource-poor small scale farmers. To guide the process of tsetse and AAT control toolkit selection, that now, more than ever before, needs to optimise resources, the costs of different tsetse and trypanosomiasis control options need to be determined.
Methods
A detailed costing of the restricted application protocol (RAP) for African trypanosomiasis control in Tororo District was undertaken between June 2012 and December 2013. A full cost calculation approach was used; including all overheads, delivery costs, depreciation and netting out transfer payments to calculate the economic (societal) cost of the intervention. Calculations were undertaken in Microsoft Excel™ without incorporating probabilistic elements.
Results
The cost of delivering RAP to the project was US$ 6.89 per animal per year while that of 4 doses of a curative trypanocide per animal per year was US$ 5.69. However, effective tsetse control does not require the application of RAP to all animals. Protecting cattle from trypanosome infections by spraying 25 %, 50 % or 75 % of all cattle in a village costs US$ 1.72, 3.45 and 5.17 per animal per year respectively. Alternatively, a year of a single dose of curative or prophylactic trypanocide treatment plus 50 % RAP would cost US$ 4.87 and US$ 5.23 per animal per year. Pyrethroid insecticides and trypanocides cost 22.4 and 39.1 % of the cost of RAP and chemotherapy respectively.
Conclusions
Cost analyses of low cost tsetse control options should include full delivery costs since they constitute 77.6 % of all project costs. The relatively low cost of RAP for AAT control and its collateral impact on tick control make it an attractive option for livestock management by smallholder livestock keepers.
【 授权许可】
2015 Muhanguzi et al.
【 预 览 】
| Files | Size | Format | View |
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| 20150805095534910.pdf | 745KB | ||
| Fig. 1. | 51KB | Image |
【 图 表 】
Fig. 1.
【 参考文献 】
- [1]Maudlin I, Holmes PH, Miles MA. The trypanosomiases. CABI Publishing, Wallingford; 2004.
- [2]Mulligan HW. African Trypanosomiases. Allen & Unwin, London; 1971.
- [3]Nash TAM. Africa’s bane – the tsetse fly. 1st ed. Collins, London; 1970.
- [4]Jordan AM. Trypanosomiasis control and African rural development. Longman, London; 1986.
- [5]Cecchi G, Wint W, Shaw A, Marletta A, Mattioli R, Robinson T. Geographic distribution and environmental characterization of livestock production systems in Eastern Africa. Agr Ecosyst Environ. 2010; 135(1):98-110.
- [6]Thornton P, Kruska R, Henninger N, Kristjanson P, Reid R, Robinson T. Locating poor livestock keepers at the global level for research and development targeting. Land Use Policy. 2003; 20(4):311-22.
- [7]Waiswa C, Olaho-Mukani W, Katunguka-Rwakishaya E. Domestic animals as reservoirs for sleeping sickness in three endemic foci in south-eastern Uganda. Ann Trop Med Parasitol. 2003; 97(2):149-55.
- [8]Waiswa C, Picozzi K, Katunguka-Rwakishaya E, Olaho-Mukani W, Musoke RA, Welburn SC. Glossina fuscipes fuscipes in the trypanosomiasis endemic areas of south eastern Uganda: apparent density, trypanosome infection rates and host feeding preferences. Acta Trop. 2006; 99(1):23-9.
- [9]Welburn SC, Fevre EM, Coleman PG, Odiit M, Maudlin I. Sleeping sickness: a tale of two diseases. Trends Parasitol. 2001; 17(1):19-24.
- [10]Picozzi K, Fèvre E, Odiit M, Carrington M, Eisler MC, Maudlin I et al.. Sleeping sickness in Uganda: a thin line between two fatal diseases. BMJ. 2005; 331(7527):1238-41.
- [11]Fèvre EM, Coleman PG, Odiit M, Magona JW, Welburn SC, Woolhouse ME. The origins of a new Trypanosoma brucei rhodesiense sleeping sickness outbreak in eastern Uganda. Lancet. 2001; 358(9282):625-8.
- [12]Welburn SC, Picozzi K, Fevre EM, Coleman PG, Odiit M, Carrington M et al.. Identification of human-infective trypanosomes in animal reservoir of sleeping sickness in Uganda by means of serum-resistance-associated (SRA) gene. Lancet. 2001; 358(9298):2017-9.
- [13]Fèvre EM, Picozzi K, Fyfe J, Waiswa C, Odiit M, Coleman PG et al.. A burgeoning epidemic of sleeping sickness in Uganda. Lancet. 2005; 366(9487):745-7.
- [14]Selby R, Bardosh K, Picozzi K, Waiswa C, Welburn SC. Cattle movements and trypanosomes: restocking efforts and the spread of Trypanosoma brucei rhodesiense sleeping sickness in post-conflict Uganda. Parasit Vectors. 2013; 6(1):281. BioMed Central Full Text
- [15]Welburn SC, Coleman PG, Maudlin I, Fevre EM, Odiit M, Eisler MC. Crisis, what crisis? Control of Rhodesian sleeping sickness. Trends Parasitol. 2006; 22(3):123-8.
- [16]Kabasa JD. Public-private partnership works to stamp out sleeping sickness in Uganda. Trends Parasitol. 2007; 23(5):191-2.
- [17]Okello A, Welburn S, Kabasa JD, Waiswa C, Rannaleet A, Mitchell M, et al. Stamp Out Sleeping Sickness (SOS): an innovative one health approach to neglected zoonotic disease in Uganda. In Ecohealth. NewYork, NY 10013 USA: 233 Spring St; 2011:S72-S72.
- [18]Lancien J, Obayi H. La lutte contre les vecteurs de la Maladie du Sommeil. Bull Soc Franç Parasitol. 1993; 11:107-17.
- [19]Lancien J. Lutte contre la maladie du sommeil dans le sud-ouest Ouganda par piégage des glossines. Ann Soc Bel Méd Trop. 1991; 71(1):35-47.
- [20]Okoth JO, Kirumira EK, Kapaata R. A new approach to community participation in tsetse control in the Busoga sleeping sickness focus, Uganda. A preliminary report. Ann Trop Med Parasitol. 1991; 85(3):315-22.
- [21]Vale G, Torr S. Development of bait technology to control tsetse. In: The Trypanosomiases. Maudlin I, Holmes P, Miles M, editors. CABI Publishing, Wallingford; 2004: p.509-23.
- [22]Van den Bossche P, De Deken R. The application of bait technolog to control tsetse. In: The Trypanosomiases. Maudlin I, Holmes P, Miles M, editors. CABI Publishing, Wallingford; 2004: p.525-32.
- [23]Allsopp R, Hursey B. Insecticidal control of tsetse. In: The Trypanosomiases. Maudlin I, Holmes P, Miles M, editors. CABI Publishing, Wallingford; 2004: p.491-507.
- [24]Kgori PM, Modo S, Torr SJ. The use of aerial spraying to eliminate tsetse from the Okavango Delta of Botswana. Acta Trop. 2006; 99(2–3):184-99.
- [25]Vreysen MJ, Saleh KM, Ali MY, Abdulla AM, Zhu ZR, Juma KG et al.. Glossina austeni (Diptera: Glossinidae) eradicated on the island of Unguja, Zanzibar, using the sterile insect technique. J Econ Entomol. 2000; 93(1):123-35.
- [26]Holmes PH, Eisler MC, Geerts S. Current chemotherapy of animal trypanosomiasis. In: The Trypanosomiases. Maudlin I, Holmes P, Miles M, editors. CABI Publishing, Wallingford; 2004: p.431-44.
- [27]Shaw AP, Torr SJ, Waiswa C, Cecchi G, Wint GR, Mattioli RC et al.. Estimating the costs of tsetse control options: an example for Uganda. Prev Vet Med. 2013; 110(3–4):290-303.
- [28]Shaw AP. Assessing the economics of animal trypanosomosis in Africa-history and current perspectives. Onderstepoort J Vet Res. 2009; 76(1):27-32.
- [29]Okello AL, Welburn SC. The importance of veterinary policy in preventing the emergence and re-emergence of zoonotic disease: examining the case of human african trypanosomiasis in Uganda. Front Public Health. 2014; 2:218.
- [30]Torr SJ, Maudlin I, Vale GA. Less is more: restricted application of insecticide to cattle to improve the cost and efficacy of tsetse control. Med Vet Entomol. 2007; 21(1):53-64.
- [31]Muhanguzi D, Picozzi K, Hatendorf J, Thrusfield M, Welburn SC, Kabasa JD et al.. Collateral benefits of restricted insecticide application for control of African trypanosomiasis on Theileria parva in cattle: a randomized controlled trial. Parasit Vectors. 2014; 7(1):432. BioMed Central Full Text
- [32]Muhanguzi D, Picozzi K, Hatendorf J, Thrusfield M, Welburn SC, Kabasa JD et al.. Prevalence and spatial distribution of Theileria parva in cattle under crop-livestock farming systems in Tororo District, Eastern Uganda. Parasit Vectors. 2014; 7(1):91. BioMed Central Full Text
- [33]Kivaria FM. Estimated direct economic costs associated with tick-borne diseases on cattle in Tanzania. Trop Anim Health Prod. 2006; 38(4):291-9.
- [34]Magona JW, Walubengo J, Odiit M, Okedi LA, Abila P, Katabazi BK et al.. Implications of the re-invasion of South-eastern Uganda by Glossina pallidipes on the epidemiology of bovine trypanosomosis. Vet Parasitol. 2005; 128(1–2):1-9.
- [35]Muhanguzi D, Picozzi K, Hattendorf J, Thrusfield M, Kabasa JD, Waiswa C et al.. The burden and spatial distribution of bovine African trypanosomes in small holder crop-livestock production systems in Tororo District, south-eastern Uganda. Parasit Vectors. 2014; 7:603. BioMed Central Full Text
- [36]Muhanguzi D, Picozzi K, Hattendorf J, Thrusfield M, Welburn SC, Kabasa JD et al.. Improvements on restricted insecticide application protocol for control of human and animal african trypanosomiasis in eastern Uganda. PLoS Negl Trop Dis. 2014; 8(10): Article ID e3284
- [37]Shaw AP. Economic guidelines for strategic planning of tsetse and trypanosomiasis control in West Africa. Rome, Food & Agriculture Org.; 2003.
- [38]Mulatu W, Swallow B, Rowlands G, Leak S, D’Ieteren G, Nagda S. Economic benefits to farmers of six years of application of an insecticidal “Pour-on” to control tsetse in Ghibe, southwest Ethiopia. Proceedings of 24th meeting of the International Scientific Council for trypanosomiasis research and control, Maputo, Mozambique. 1997.
- [39]Rowlands GJ, Leak SG, Mulatu W, Nagda SM, Wilson A, d’Ieteren GD. Use of deltamethrin ‘pour-on’ insecticide for the control of cattle trypanosomosis in the presence of high tsetse invasion. Med Vet Entomol. 2001; 15(1):87-96.
- [40]Brownlow AC. Evaluation of a novel method for controlling bovine trypanosomiasis; a longtudinal study in south-eastern Uganda. Doctor of Philosophy University of Edinburgh 2007.
- [41]Bourn D, Grant I, Shaw A, Torr S. Cheap and safe tsetse control for livestock production and mixed farming in Africa. Aspect Appl Biol. 2005; 75:81.
- [42]Vale G, Mutika G, Lovemore D. Insecticide-treated cattle for controlling tsetse flies (Diptera: Glossinidae): some questions answered, many posed. Bull Entomol Res. 1999; 89(06):569-78.
- [43]Vale GA, Torr SJ. User-friendly models of the costs and efficacy of tsetse control: application to sterilizing and insecticidal techniques. Med Vet Entomol. 2005; 19(3):293-305.
- [44]Kajunguri D, Hargrove JW, Ouifki R, Mugisha JY, Coleman PG, Welburn SC. Modelling the Use of Insecticide-Treated Cattle to Control Tsetse and Trypanosoma brucei rhodesiense in a Multi-host Population. Bull Math Biol 2014;76(3):673–96.
- [45]Hargrove JW, Ouifki R, Kajunguri D, Vale GA, Torr SJ. Modeling the control of trypanosomiasis using trypanocides or insecticide-treated livestock. PLoS Negl Trop Dis. 2012; 6(5): Article ID e1615
- [46]Torr SJ, Wilson PJ, Schofield S, Mangwiro TN, Akber S, White BN. Application of DNA markers to identify the individual-specific hosts of tsetse feeding on cattle. Med Vet Entomol. 2001; 15(1):78-86.
- [47]Geerts S, Holmes PH, Eisler MC, Diall O. African bovine trypanosomiasis: the problem of drug resistance. Trends Parasitol. 2001; 17(1):25-8.
- [48]Eisler MC, Torr SJ, Coleman PG, Machila N, Morton JF. Integrated control of vector-borne diseases of livestock--pyrethroids: panacea or poison? Trends Parasitol. 2003; 19(8):341-5.
- [49]Itty P. Economics of village cattle production in tsetse affected areas of Africa: a study of trypanosomiasis control using trypanotolerant cattle and chemotherapy in Ethiopia, Kenya, Côte d’Ivoire, The Gambia, Zaire and Togo: Hartung-Gorre Verlag; 1992
- [50]Grant IF. Insecticides for tsetse and trypanosomiasis control: is the environmental risk acceptable? Trends Parasitol. 2001; 17(1):10-4.
- [51]Coleman PG, Perry BD, Woolhouse ME. Endemic stability--a veterinary idea applied to human public health. Lancet. 2001; 357(9264):1284-6.
- [52]Vale GA, Grant IF. Modelled impact of insecticide-contaminated dung on the abundance and distribution of dung fauna. Bull Entomol Res. 2002; 92(3):251-63.
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