This report by ILRI on Decision-support tool for prevention and control of Rift Valley Fever epizootics in the Greater Horn of Africa was released on 7 August, 2009.
This publications presents study on decision-support tool for prevention and control of Rift Valley fever epizootics in the Greater Horn of Africa. The decision-support tool consists of four elements, viz. a map of areas in the GHA at risk from RVF epizootics; a list of the sequence of events related to increasing and decreasing risk of an RVF epizootic in the GHA; actions matched to the sequence of events listed in 2; and the selected information, resources and references. This tool is designed to help decision-makers lower the risk to themselves, their governments and citizens by taking action commensurate with the level of risk at the right time. As the sequence of events progresses, the probability that an RVF epizootic will occur increases; the justification for taking actions to mitigate the risk also increases, and the risk of taking unjustified actions decreases. The document further details sequence of events related to increasing and decreasing risk of an RVF epizootic in the Greater Horn of Africa, with partic. ref. to normal situation between outbreaks; early warning of RVF issued and/or early warning of heavy rain by national meteorological departments; localized, prolonged heavy rains reported by eye-witnesses; localized flooding reported by eye-witnesses; localized mosquito swarms reported by eye-witnesses; first detection of suspected RVF in livestock by active searching and/or rumors from herders; laboratory confirmation of RVF cases in livestock; first rumor or field report of human RVF case; laboratory confirmation of first human RVF case; no new human cases for six months; no clinical livestock cases for six months; and post-outbreak recovery and reflection.