Sanitary situation in France: From IHN and VHS eradication to the characterization of unknown and emergent viruses - Anses - Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Sanitary situation in France: From IHN and VHS eradication to the characterization of unknown and emergent viruses

Résumé

Although our territory contains many zones and compartments free of IHNV and VHSV, these listed Rhabdoviruses have been occasionally detected in France since their first description in 1971 and 1989 respectively. In order to obtain a free status for those diseases, a National Eradication and Surveillance Plan, supported by European Union, was started in France in 2017. The amount of laboratory analysis has been consequently increased these last 5 years, reaching around 700 analysis in 2021. Almost all the metropolitan territory is involved in this approach and more and more sites of production are committing to this program. Moreover, an important effort was done to integrate the characteristics of the extensive aquaculture, mainly represented by carp and pike production in France. Vector species for VHSV and IHNV, pike are mostly imported from the East of Europe, without any certificate to ensure their sanitary status. In order to secure fish trade, French professionals and administration discussed with their counterparts in Czech in last October, in order to identify constructive solutions. In parallel of this plan, some new viruses are regularly identified and described, mainly thanks to the cell culture-based tools and new generation sequencing. For example, we recently described a new picornavirus isolated from seabream larvae showing an abnormal increase of mortality in early stages of development. The genome of this new virus, proposed to be called potamipivirus daurada, was annotated and compared to other Picornaviridae family members and a specific RT-qPCR was developed to screen fish farms.
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Dates et versions

anses-04082206 , version 1 (26-04-2023)

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  • HAL Id : anses-04082206 , version 1

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Lénaïg Louboutin, Marine Baud, Laurent Bigarré, Joëlle Cabon, Laurane Pallandre, et al.. Sanitary situation in France: From IHN and VHS eradication to the characterization of unknown and emergent viruses. 26th Annual Workshop for the National Reference Laboratories for Fish Diseases, May 2022, Lyngby, Denmark. ⟨anses-04082206⟩

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