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Rift Valley fever (RVF) is a mosquito-borne viral disease of animals and humans that occurs throughout sub-Saharan Africa, Egypt, and the Arabian Peninsula. The disease is associated with enormous burdens on human and veterinary health, socio-economics and disease management. The RVF outbreaks ar...


Gachohi, John M.[A simulation model for Rift Valley fever transmission in Kenya]A simulation model for Rift Valley fever transmission in Kenya
Gachohi, John M.Njenga, M.K.Kitala, P.Bett, Bernard K.[Correction: Modelling vaccination strategies against Rift Valley fever in livestock in Kenya]Correction: Modelling vaccination strategies against Rift Valley fever in livestock in Kenya

The planet’s mean air and ocean temperatures have been rising over the last century because of increasing greenhouse gas emissions. These changes have substantial effects on the epidemiology of infectious diseases. We describe direct and indirect processes linking climate change and infectious di...


Bett, Bernard K.Kiunga, P.Gachohi, John M.Sindato, C.Mbotha, D.Robinson, Timothy P.Lindahl, Johanna F.Grace, Delia[Effects of climate change on the occurrence and distribution of livestock diseases]Effects of climate change on the occurrence and distribution of livestock diseases

Introduction Rift Valley fever virus (RVFV) transmission gets elevated following periods of excessive and persistent rainfall. The average inter-epizootic period in Kenya has been estimated to be 3.6 years (range 1–7 years). It is presumed that herd immunity plays an important role in modifying t...


Gachohi, John M.Bett, Bernard K.[Rift Valley fever: Influence of herd immunity patterns on transmission dynamics]Rift Valley fever: Influence of herd immunity patterns on transmission dynamics

Introduction Rift Valley fever virus (RVFV) transmission gets elevated following periods of excessive and persistent rainfall. The average inter-epizootic period in Kenya has been estimated to be 3.6 years (range 1–7 years). It is presumed that herd immunity plays an important role in modifying t...


Gachohi, John M.Bett, Bernard K.[Predicted changes in herd immunity levels against Rift Valley fever virus in livestock following a natural exposure]Predicted changes in herd immunity levels against Rift Valley fever virus in livestock following a natural exposure
Bett, Bernard K.Gachohi, John M.[Insights from Kenya: why anthrax outbreaks recur in the same areas]Insights from Kenya: why anthrax outbreaks recur in the same areas

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...


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

This deliverable gives provisional results of the on-going analyses on RVF and malaria transmission studies in Kenya. Analyses on RVF are based on historical data on RVF outbreaks recorded in the study site between 1961 and 2007, initial outputs from the RVF dynamical model that is being deve...


Bett, Bernard K.Gachohi, John M.Mbotha, D.[Rift Valley fever/malaria study site analysis and major findings for Rift Valley fever and malaria transmission]Rift Valley fever/malaria study site analysis and major findings for Rift Valley fever and malaria transmission

The rapid evolution of Rift Valley fever (RVF) outbreaks generates exceptional challenges in its mitigation and control. A decision-support tool for prevention and control of RVF in the Greater Horn of Africa identifies a series of events that indicates increasing risk of an outbreak and matches ...


Gachohi, John M.Bett, Bernard K.[Mitigation of the impacts of Rift Valley fever through targeted vaccination strategies]Mitigation of the impacts of Rift Valley fever through targeted vaccination strategies

Peste des petits ruminants (PPR) is an emerging viral disease spreading throughout Kenya and East Africa causing major losses in the small stock. This study is an attempt to evaluate small stock management practices in Turkana pastoral system, Kenya as predictors of PPR outbreaks. Information o...


Kihu, S.M.Gachohi, John M.Gitao, C.G.Bebora, L.C.Njenga, J.M.Wairire, G.G.Maingi, N.Wahome, R.G.[Analysis of small ruminants’ pastoral management practices as risk factors of peste des petits ruminants (PPR) spread in Turkana District, Kenya]Analysis of small ruminants’ pastoral management practices as risk factors of peste des petits ruminants (PPR) spread in Turkana District, Kenya

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