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Revue des facteurs de risque spatialisés de transmission du virus de l’influenza aviaire hautement pathogène H5N8 en France en 2016-2017

Abstract : Review of spatial risk factors for transmission of highly pathogenic avian influenza H5N8 virus in France in 2016-2017 With a total of 484 poultry outbreaks within a 4-month period, France was the most severely affected European country. Outbreaks were mainly reported in duck flocks (81.6%) and located in south-west France. H5N8 incursion into the country was attributed to long-distance flights of infected migratory birds from northern Eurasia. Then, the first subsequent outbreaks were likely associated with the movement of infected ducks prior to the implementation of movement controls. Most of the geographic spread was then linked to local farm-to-farm transmission events followed by long-range jumps in the disease dispersal towards the end, which was likely explained by the reinforcement of control measures. Wild birds and wind-borne route appeared to have played a minor role in the spread of H5N8. The epidemic was finally contained by end of March 2017 in the country, through the application of severe control measures, including pre-emptive culling and stringent movement restrictions that ultimately led to the eradication of H5N8.
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https://hal.inrae.fr/hal-03335797
Contributor : Tifenn Corre <>
Submitted on : Monday, September 6, 2021 - 3:00:00 PM
Last modification on : Friday, September 10, 2021 - 3:37:09 AM

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Claire Guinat, Benoit Durand, Marius Gilbert, Anne Bronner, Tifenn Corre, et al.. Revue des facteurs de risque spatialisés de transmission du virus de l’influenza aviaire hautement pathogène H5N8 en France en 2016-2017. Bulletin épidémiologique, santé animale - alimentation, ANSES, 2021, 92, pp.3. ⟨hal-03335797⟩

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