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Real-time monitoring and forecasting of Rift Valley fever in Africa










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    Brochure, flyer, fact-sheet
    FAO helps countries prevent and control Rift Valley fever 2015
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    RIFT VALLEY FEVER (RVF) is a zoonotic, viral, vector-borne disease representing a threat to human health, animal health and livestock production in Sub-Saharan Africa, the Near East and potentially Europe and the rest of the world. The impact of the disease on people’s livelihoods (socio-economic) and on trade (restrictions) can be high. Climatic factors are important drivers of RVF viral activity as they drive vector abundance and population dynamics, thus influencing the risk of disease emerge nce, transmission and spread. A climate-affecting phenomenon such as El Niño can have high impact on RVF.
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    Book (series)
    Africa - El Niño and increased risk of Rift Valley fever – Warning to countries 2015
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    Rift Valley fever (RVF) is a zoonotic, viral, vector-borne disease representing a threat to human health, animal health and livestock production in Africa, the Near East and potentially Europe and the rest of the world. In this EMPRES WATCH, a description of the past RVF epidemic in East Africa during the period 2006-2007 and the RVF cases recently occurred in Mauritania in 2015 is presented together with an update of the RVF risk model based on in east Africa and the predicted El Niño event ass ociated with abundant rainfall in extensive areas of the East African region. In some locations the rainfall estimates and anomalies for October and mid-November 2015 are similar to, or above, values observed in 1997/1998 and/or in 2006/2007, when major outbreaks occurred in Kenya, Somalia and Tanzania. This EMPRES Watch is warning countries about the increased risk of Rift Valley fever disease in livestock and human of Africa and provides recommendations to prevent, respond and reduce the risk.
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    Book (series)
    Rift Valley fever action framework 2022
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    Rift Valley fever (RVF) is an arboviral disease affecting humans and livestock transmitted by mosquitoes. It is endemic to large areas of Africa, resulting in widespread abortion and neonatal mortality in livestock, and severe complications in a small but significant percentage of human cases. The range of RVF is largely determined by the distribution of suitable vector habitat and rainfall, which changes over time and as a result of climate change. In addition to which, the movement of animals and animal products for trade may lead to the spread of RVF to previously non-infected areas. This RVF Action Framework is intended to provide decision makers with guidance on the best course of action to take in response to an RVF outbreak or the risk of an outbreak, and help them develop a national action plan for this response. A coordinated One Health approach that brings together the public, animal and environmental health sectors is recommended, as is a risk-based approach that uses risk assessment and mapping to determine the appropriate measures to be taken and the locations where they are required. A country’s RVF response can be best broken down into the four phases of the epidemiological cycle: the inter-epidemic, pre-epidemic, epidemic and post-epidemic periods. Surveillance, risk assessment and capacity building, for instance, are key during the inter-epidemic period, while the focus during the post-epidemic period shifts to mitigating the disease’s impact.

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