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Background To-date, Rift Valley fever (RVF) outbreaks have occurred in 38 of the 69 administrative districts in Kenya. Using surveillance records collected between 1951 and 2007, we determined the risk of exposure and outcome of an RVF outbreak, examined the ecological and climatic factors assoc...


Munyua, P.M.Murithi, R.M.Ithondeka, P.M.Hightower, A.Thumbi, S.M.Anyangu, S.A.Kiplimo, Jusper RonohBett, Bernard K.Vrieling, A.Breiman, R.F.Njenga, M.K.[Predictive factors and risk mapping for Rift Valley fever epidemics in Kenya]Predictive factors and risk mapping for Rift Valley fever epidemics in Kenya

In January 2007, an outbreak of Rift Valley fever (RVF) was detected among humans in northern Tanzania districts. By the end of the outbreak in June, 2007, 511 suspect RVF cases had been recorded from 10 of the 21 regions of Tanzania, with laboratory confirmation of 186 cases and another 123 prob...


Mohamed, M.Mosha, F.Mghamba, J.Zaki, S.R.Wun-Ju Shieh, W.J.Paweska, J.Omulo, S.Gikundi, S.Mmbuji, P.Bloland, P.Zeidner, N.Kalinga, R.Breiman, R.F.Njenga, M.K.[Epidemiologic and clinical aspects of a Rift Valley Fever outbreak in humans in Tanzania, 2007]Epidemiologic and clinical aspects of a Rift Valley Fever outbreak in humans in Tanzania, 2007

A large Rift Valley fever (RVF) outbreak occurred in Kenya from December 2006 to March 2007. We conducted a study to define risk factors associated with infection and severe disease. A total of 861 individuals from 424 households were enrolled. Two hundred and two participants (23%) had serologic...


Anyangu, A.S.Gould, L.H.Sharif, S.K.Nguku, P.M.Omolo, J.O.Mutonga, D.Rao, C.Y.Lederman, E.R.Schnabel, D.Paweska, J.T.Katz, M.Hightower, A.Njenga, M.K.Feikin, D.R.Breiman, R.F.[Risk factors for severe Rift Valley Fever infection in Kenya, 2007]Risk factors for severe Rift Valley Fever infection in Kenya, 2007
Breiman, R.F.Minjauw, B.Sharif, S.K.Ithondeka, P.M.Njenga, M.K.[Rift Valley Fever: Scientific pathways toward public health prevention and response]Rift Valley Fever: Scientific pathways toward public health prevention and response

An outbreak of Rift Valley fever (RVF) occurred in Kenya during November 2006 through March 2007. We characterized the magnitude of the outbreak through disease surveillance and serosurveys, and investigated contributing factors to enhance strategies for forecasting to prevent or minimize the imp...


Nguku, P.M.Sharif, S.K.Mutonga, D.Amwayi, S.Omolo, J.O.Mohammed, O.Farnon, E.C.Gould, L.H.Lederman, E.Rao, C.Sang, R.Schnabel, D.Feikin, D.R.Hightower, A.Njenga, M.K.Breiman, R.F.[An investigation of a major outbreak of Rift Valley Fever in Kenya: 2006-2007]An investigation of a major outbreak of Rift Valley Fever in Kenya: 2006-2007

In December 2006, Rift Valley fever (RVF) was diagnosed in humans in Garissa Hospital, Kenya and an outbreak reported affecting 11 districts. Entomologic surveillance was performed in four districts to determine the epidemic/epizootic vectors of RVF virus (RVFV). Approximately 297,000 mosquitoes ...


Sang, R.Kioko, E.Lutomiah, J.Warigia, M.Ochieng, C.O'Guinn, M.Lee, J.S.Koka, H.Godsey, MHoel, D.Hanafi, H.Miller, B.Schnabel, D.Breiman, R.F.Richardson, J.[Rift Valley Fever Virus epidemic in Kenya, 2006/2007: The entomologic investigations]Rift Valley Fever Virus epidemic in Kenya, 2006/2007: The entomologic investigations

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