Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future

In this article, we review the epidemiology of East Coast fever (ECF), a tick borne infection of cattle, in Kenya. The major factors associated with epidemiology of ECF include the agro-ecological zone (AEZ), livestock production system (LPS) and both animal breed and age. These factors appear to in...

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Autores principales: Gachohi, John M., Skilton, Robert A., Hansen, F., Ngumi, P.N., Kitala, P.M.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Springer 2012
Materias:
Acceso en línea:https://hdl.handle.net/10568/21766
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author Gachohi, John M.
Skilton, Robert A.
Hansen, F.
Ngumi, P.N.
Kitala, P.M.
author_browse Gachohi, John M.
Hansen, F.
Kitala, P.M.
Ngumi, P.N.
Skilton, Robert A.
author_facet Gachohi, John M.
Skilton, Robert A.
Hansen, F.
Ngumi, P.N.
Kitala, P.M.
author_sort Gachohi, John M.
collection Repository of Agricultural Research Outputs (CGSpace)
description In this article, we review the epidemiology of East Coast fever (ECF), a tick borne infection of cattle, in Kenya. The major factors associated with epidemiology of ECF include the agro-ecological zone (AEZ), livestock production system (LPS) and both animal breed and age. These factors appear to influence the epidemiology of ECF through structured gradients. We further show that the gradients are dynamically shaped by socio-demographic and environmental processes. For a vector-borne disease whose transmission depends on environmental characteristics that influence vector dynamics, a change in the environment implies a change in the epidemiology of the disease. The review recommends that future ECF epidemiological studies should account for these factors and the dynamic interactions between them. In Kenya, ECF control has previously relied predominantly on tick control using acaricides and chemotherapy while ECF immunization is steadily being disseminated. We highlight the contribution of ECF epidemiology and economics in the design of production system and/or geographical area-specific integrated control strategies based on both the dynamic epidemiological risk of the disease and economic impacts of control strategies. In all production systems (except marginal areas), economic analyses demonstrate that integrated control in which ECF immunization is always an important component, can play an important role in the overall control of the disease. Indeed, Kenya has recently approved ECF immunization in all production systems (except in marginal areas). If the infrastructure of the vaccine production and distribution can be heightened, large ECF endemic areas are expected to be endemically stable and the disease controlled. Finally, the review points the way for future research by identifying scenario analyses as a critical methodology on which to base future investigations on how both dynamic livestock management systems and patterns of land use influence the dynamics and complexity of ECF epidemiology and the implications for control.
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spelling CGSpace217662024-01-09T09:04:44Z Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future Gachohi, John M. Skilton, Robert A. Hansen, F. Ngumi, P.N. Kitala, P.M. animal diseases cattle livestock zoonoses infectious diseases parasitology In this article, we review the epidemiology of East Coast fever (ECF), a tick borne infection of cattle, in Kenya. The major factors associated with epidemiology of ECF include the agro-ecological zone (AEZ), livestock production system (LPS) and both animal breed and age. These factors appear to influence the epidemiology of ECF through structured gradients. We further show that the gradients are dynamically shaped by socio-demographic and environmental processes. For a vector-borne disease whose transmission depends on environmental characteristics that influence vector dynamics, a change in the environment implies a change in the epidemiology of the disease. The review recommends that future ECF epidemiological studies should account for these factors and the dynamic interactions between them. In Kenya, ECF control has previously relied predominantly on tick control using acaricides and chemotherapy while ECF immunization is steadily being disseminated. We highlight the contribution of ECF epidemiology and economics in the design of production system and/or geographical area-specific integrated control strategies based on both the dynamic epidemiological risk of the disease and economic impacts of control strategies. In all production systems (except marginal areas), economic analyses demonstrate that integrated control in which ECF immunization is always an important component, can play an important role in the overall control of the disease. Indeed, Kenya has recently approved ECF immunization in all production systems (except in marginal areas). If the infrastructure of the vaccine production and distribution can be heightened, large ECF endemic areas are expected to be endemically stable and the disease controlled. Finally, the review points the way for future research by identifying scenario analyses as a critical methodology on which to base future investigations on how both dynamic livestock management systems and patterns of land use influence the dynamics and complexity of ECF epidemiology and the implications for control. 2012-12 2012-09-16T09:23:13Z 2012-09-16T09:23:13Z Journal Article https://hdl.handle.net/10568/21766 en Open Access Springer Gachohi, J.M., Skilton, R.A., Hansen, F., Ngumi, P.N. and Kitala, P.M. 2012. Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future. Parasites & Vectors 5: 194
spellingShingle animal diseases
cattle
livestock
zoonoses
infectious diseases
parasitology
Gachohi, John M.
Skilton, Robert A.
Hansen, F.
Ngumi, P.N.
Kitala, P.M.
Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title_full Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title_fullStr Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title_full_unstemmed Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title_short Epidemiology of East Coast fever (Theileria parva infection) in Kenya: Past, present and the future
title_sort epidemiology of east coast fever theileria parva infection in kenya past present and the future
topic animal diseases
cattle
livestock
zoonoses
infectious diseases
parasitology
url https://hdl.handle.net/10568/21766
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AT hansenf epidemiologyofeastcoastfevertheileriaparvainfectioninkenyapastpresentandthefuture
AT ngumipn epidemiologyofeastcoastfevertheileriaparvainfectioninkenyapastpresentandthefuture
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