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dc.contributor.authorFuhrimann, S.
dc.contributor.authorKimani, T.
dc.contributor.authorHansen, F.
dc.contributor.authorBett, B.
dc.contributor.authorZinsstag, J.
dc.contributor.authorSchelling, E.
dc.date.accessioned2015-03-29T15:27:02Z
dc.date.available2015-03-29T15:27:02Z
dc.date.issued2015-03-09
dc.identifier.citationFuhrimann, S., Kimani, T., Hansen, F., Bett, B., Zinsstag, J. and Schelling, E. 2015. Rift Valley fever in Kenyan pastoral livestock: Individual-based demographic model to analyse the impact of Rift Valley fever. Presentation at the Regional Conference on Zoonoses in Eastern Africa, Naivasha, Kenya, 9-12 March 2015. Basel, Switzerland: Swiss Tropical and Public Health Institute.en_US
dc.identifier.urihttp://hdl.handle.net/10568/63497
dc.description.abstractBackground Rift Valley Fever (RVF) is a viral zoonosis and a mosquito-borne disease caused by a phlebovirus in the family Bunyaviridae. It affects livestock, humans and wildlife. Epidemic outbreaks of RVF in East Africa, which occur after heavy rainfalls in cycles of 5-15 years, have caused next to human morbidity and mortality considerable economic losses throughout the livestock production and market chain. Objective Establishment a pastoral livestock demographic model to simulate 10 year alternating normal and drought periods and RVF epidemics. Methods We developed an individual-based C++ language with Borland C++ builder 6 model, to simulate livestock dynamics in North Eastern-Province during normal and drought periods, tracked over days and years. During RVF epidemics and with different control measures, animals were stratified into susceptible, exposed, infectious and recovered. The following scenarios were modeled (i) the demographic dynamics of cattle, camels, sheep and goats; (ii) an RVF outbreak in livestock and (iii) impacts of control measures (combinations of vaccination, sanitary measures, surveillance and vector control). Results/Conclusions Sheep and goat populations increase fastest (9-23%) annually during normal years while cattle and sheep populations show fastest decline during drought. In infected areas, mainly sheep (59%) are infected followed by goats (44%), cattle (31%), and camels (5%). Sheep and goats are most likely to spread the RVF through livestock trade. Slaughtered infected sheep are an important risk factor to human RVF infection. After the 2006/2007 outbreak, 2%, 40%, 30% and less than 1% of cattle, sheep, goats and camels acquired immunity. After seven years, only 4%, of sheep and goats remain immune. Our results will assist in the assessment of cost-benefit and cost-effectiveness of interventions which should improve future intersectoral livestock – public health contingency planning.en_US
dc.language.isoenen_US
dc.publisherSwiss Tropical and Public Health Instituteen_US
dc.subjectANIMAL DISEASESen_US
dc.titleRift Valley fever in Kenyan pastoral livestock: Individual-based demographic model to analyse the impact of Rift Valley feveren_US
dc.typePresentationen_US
cg.subject.ilriANIMAL DISEASESen_US
cg.subject.ilriDISEASE CONTROLen_US
cg.subject.ilriLIVESTOCKen_US
cg.subject.ilriRVFen_US
cg.subject.ilriZOONOTIC DISEASESen_US
cg.identifier.statusOpen Accessen_US
cg.contributor.affiliationSwiss Tropical and Public Health Instituteen_US
cg.targetaudienceSCIENTISTSen_US
cg.fulltextstatusGrey Literatureen_US
cg.identifier.urlhttp://www.slideshare.net/ILRI/rvf-in-kenyan-pastoral-livestocken_US
cg.placeBasel, Switzerlanden_US
cg.coverage.regionAFRICAen_US
cg.coverage.regionEAST AFRICAen_US
cg.coverage.countryKENYAen_US
cg.contributor.crpAGRICULTURE FOR NUTRITION AND HEALTHen_US


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