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In order to assess the economic impact of heartwater (Cowdria ruminantium infection) and model the impact of improved vaccines against the disease, a field study was conducted to provide data on livestock productivity indicators in Zimbabwe. Cross-sectional studies were performed in the two main ...


Chamboko, TafireyiMukhebi, A.W.O'Callaghan, C.J.Peter, T.F.Kruska, R.L.Medley, G.F.Mahan, S.M.Perry, Brian D.[Heartwater and the economics of livestock production on large scale commercial and smallholder farms in Zimbabwe]Heartwater and the economics of livestock production on large scale commercial and smallholder farms in Zimbabwe

The tick vectors of heartwater (Cowdria ruminantium infection) in Zimbabwe, Amblyomma hebraeum and Amblyomma variegatum, historically were believed to be confined to the low-lying regions of the south and north-west of the country. However, country-wide surveys performed in 1975-1980 and 1988-199...


Peter, T.F.Perry, Brian D.O'Callaghan, C.J.Medley, G.F.Shumba, W.Madzima, W.Burridge, M.J.Mahan, S.M.[Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe]Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe
Lessard, P.L'Eplattenier, R.Norval, R.A.I.Kundert, K.Dolan, T.T.Croze, H.Walker, J.B.Irvin, A.D.Perry, Brian D.[Geographic information systems for studying the epidemiology of cattle diseases caused by Theileria parva]Geographic information systems for studying the epidemiology of cattle diseases caused by Theileria parva

This paper discusses the sustainability of livestock systems, emphasising bidirectional relations with animal health. We review conventional and contrarian thinking on sustainability and argue that in the most common approaches to understanding sustainability, health aspects have been under-exami...


Perry, Brian D.Robinson, Timothy P.Grace, Delia[Review: Animal health and sustainable global livestock systems]Review: Animal health and sustainable global livestock systems

We quantified the between-village transmission rate, β (the rate of transmission of H5N1 HPAI virus per effective contact), and the reproductive number, Re (the average number of outbreaks caused by one infectious village during its entire infectious period), of H5N1 highly pathogenic avian influ...


Bett, Bernard K.Henning, J.Abdu, P.Okike, I.Poole, Elizabeth J.Young, J.Randolph, Thomas F.Perry, Brian D.[Transmission rate and reproductive number of the H5N1 highly pathogenic avian influenza virus during the December 2005-July 2008 epidemic in Nigeria]Transmission rate and reproductive number of the H5N1 highly pathogenic avian influenza virus during the December 2005-July 2008 epidemic in Nigeria

Outbreaks of highly pathogenic avian influenza (HPAI) H5N1 occurred in Nigeria between December 2005 and July 2008. We describe temporal and spatial characteristics of these outbreaks at State and Local Government Area (LGA) levels. A total of 25 of 37 States (67.6%; Exact 95% CI: 50.2–82.0%) and...


Henning, J.Bett, Bernard K.Okike, I.Abdu, P.Perry, Brian D.[Incidence of highly pathogenic avian influenza H5N1 in Nigeria, 2005-2008]Incidence of highly pathogenic avian influenza H5N1 in Nigeria, 2005-2008

A study of 150 dog-owning households from six randomly selected sublocations was conducted in Machakos District, Kenya. Initially, all households were visited to collect information on dog ecology and demography based on WHO guidelines and to collect serum for rabies antibody detection. A second ...


Kitala, P.McDermott, John J.Kyule, M.Gathuma, J.Perry, Brian D.Wandeler, A.[Dog ecology and demography information to support the planning of rabies cotnrol in Machakos District, Kenya]Dog ecology and demography information to support the planning of rabies cotnrol in Machakos District, Kenya

Foot-and-mouth disease (FMD) remains one of the most important livestock diseases of the world, given its highly infectious nature, its broad economic impacts on animal wellbeing and productivity, and its implications for successful access to domestic and export markets for livestock and products...


Perry, Brian D.Rich, Karl M.[Poverty impacts of foot-and-mouth disease and the poverty reduction implications of its control]Poverty impacts of foot-and-mouth disease and the poverty reduction implications of its control

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