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Journal Article 1999

Autor: O'Callaghan, C.J. Medley, G.F. Peter, T.F. Mahan, S.M. Perry, Brian D.

A mathematical description of the transmission dynamics of the tick-borne infection Cowdria ruminantium in commercial beef enterprises in Zimbabwe was used to consider the potential impact of a candidate vaccine to prevent heartwater. The important characteristics of the vaccine were (1) a delay ...

Enlace original: https://cgspace.cgiar.org/handle/10568/33115

Investigación en Agricultura
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O'Callaghan, C.J. ,  Medley, G.F. ,  Peter, T.F. ,  Mahan, S.M. ,  Perry, Brian D. ,  [Predicting the effect of vaccination on the transmission dynamics of heartwater (Cowdria ruminantium infection)] ,  Predicting the effect of vaccination on the transmission dynamics of heartwater (Cowdria ruminantium infection)
Journal Article 1999

Autor: Mukhebi, A.W. Chamboko, Tafireyi O'Callaghan, C.J. Peter, T.F. Kruska, R.L. Medley, G.F. Mahan, S.M. Perry, Brian D.

Heartwater, caused by the rickettsial organism Cowdria ruminantium, is a serious constraint to livestock development in much of sub-Saharan Africa. Traditionally, the disease has been controlled by the use of chemical acaricides to control the vector tick. The University of Florida/USAID-supporte...

Enlace original: https://cgspace.cgiar.org/handle/10568/33114

Investigación en Agricultura
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Mukhebi, A.W. ,  Chamboko, Tafireyi ,  O'Callaghan, C.J. ,  Peter, T.F. ,  Kruska, R.L. ,  Medley, G.F. ,  Mahan, S.M. ,  Perry, Brian D. ,  [An assessment of the economic impact of heartwater (Cowdria ruminantium infection) and its control in Zimbabwe] ,  An assessment of the economic impact of heartwater (Cowdria ruminantium infection) and its control in Zimbabwe
Journal Article 1998

Autor: Perry, Brian D. Chamboko, Tafireyi Mahan, S.M. Medley, G.F. Minjauw, B. O'Callaghan, C.J. Peter, T.F.

The authors highlight the reliance on repeated natural infections by tickborne pathogens to maintain immunity in immunized herds. That incidence of clinical heartwater in cattle, caused by Cowdria ruminantium, is low while intensive acaricide use interrupts transmission of pathogens. Evidence is ...

Enlace original: https://cgspace.cgiar.org/handle/10568/29964

Investigación en Agricultura
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Perry, Brian D. ,  Chamboko, Tafireyi ,  Mahan, S.M. ,  Medley, G.F. ,  Minjauw, B. ,  O'Callaghan, C.J. ,  Peter, T.F. ,  [The economics of integrated tick and tick-borne disease control on commercial farms in Zimbabwe] ,  The economics of integrated tick and tick-borne disease control on commercial farms in Zimbabwe
Conference Paper 1997

Autor: Perry, Brian D. Kruska, R.L. Medley, G.F. Mukhebi, A.W. O'Callaghan, C.J. Peter, T.F. Reid, Robin S. Williams, T.

The International Livestock Research Institute (ILRI) conducts research on strategic issues that constrain livestock productivity of resource-poor households, with a focus as smallholder crop-livestock systems. The institute conducts research in the areas of ruminant genetics, ruminant health, fe...

Enlace original: https://cgspace.cgiar.org/handle/10568/50504

Investigación en Agricultura
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Perry, Brian D. ,  Kruska, R.L. ,  Medley, G.F. ,  Mukhebi, A.W. ,  O'Callaghan, C.J. ,  Peter, T.F. ,  Reid, Robin S. ,  Williams, T. ,  [Ex ante impact assessment of disease control technologies: The case of vector-borne infections in Africa] ,  Ex ante impact assessment of disease control technologies: The case of vector-borne infections in Africa
Conference Paper 1997

Autor: Perry, Brian D. Chamboko, Tafireyi Mahan, S. Medley, G.F. Mukhebi, A.W. O'Callaghan, C.J. Peter, T.F.

Heartwater, a disease of ruminants caused by the rickettsia Cowdria ruminantium and transmitted by ticks of the genus Amblyomma, is a significant cause of productivity losses in cattle, sheep and goats in most of sub-Saharan Africa. In southern Africa, the vector of C. ruminantium is A. hebraeum....

Enlace original: https://cgspace.cgiar.org/handle/10568/50115

Investigación en Agricultura
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Perry, Brian D. ,  Chamboko, Tafireyi ,  Mahan, S. ,  Medley, G.F. ,  Mukhebi, A.W. ,  O'Callaghan, C.J. ,  Peter, T.F. ,  [A study of the effects of heartwater and its control on livestock productivity and economics in Zimbabwe] ,  A study of the effects of heartwater and its control on livestock productivity and economics in Zimbabwe
Conference Paper 1998

Autor: Chamboko, Tafireyi Mukhebi, A.W. O'Callaghan, C.J. Peter, T.F. Kruska, R.L. Medley, G.F. Mahan, S.M. Perry, Brian D.
Enlace original: https://cgspace.cgiar.org/handle/10568/50421

Investigación en Agricultura
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Chamboko, Tafireyi ,  Mukhebi, A.W. ,  O'Callaghan, C.J. ,  Peter, T.F. ,  Kruska, R.L. ,  Medley, G.F. ,  Mahan, S.M. ,  Perry, Brian D. ,  [Economic impact of heartwater and its control in Zimbabwe] ,  Economic impact of heartwater and its control in Zimbabwe
Conference Paper 1998

Autor: Minjauw, B. Perry, Brian D. Kruska, R.L. Peter, T.F. Mahan, S.M. Medley, G.F. O'Callaghan, C.J.
Enlace original: https://cgspace.cgiar.org/handle/10568/50420

Investigación en Agricultura
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Minjauw, B. ,  Perry, Brian D. ,  Kruska, R.L. ,  Peter, T.F. ,  Mahan, S.M. ,  Medley, G.F. ,  O'Callaghan, C.J. ,  [Economic impact assessment of heartwater in Southern Africa] ,  Economic impact assessment of heartwater in Southern Africa

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