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An expert opinion assessment of blood-feeding arthropods based on their capacity to transmit African swine fever virus in Metropolitan France

Saegerman Claude, Bonnet Sarah, Bouhsira Emilie, De Regge Nick, Fite Johanna, Etore Florence, Garigliany Mutien-Marie, Jori Ferran, Lempereur Laetitia, Le Potier Marie-Frédérique, Quillery Elsa, Vergne Timothée, Vial Laurence. 2020. An expert opinion assessment of blood-feeding arthropods based on their capacity to transmit African swine fever virus in Metropolitan France. Transboundary and Emerging Diseases, 15 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : To deal with the limited literature data on the vectorial capacity of blood‐feeding arthropods (BFAs) and their role in the transmission of African swine fever virus (ASFV) in Metropolitan France, a dedicated working group of the French Agency for Food, Environmental and Occupational Health & Safety performed an expert knowledge elicitation. In total, 15 different BFAs were selected as potential vectors by the ad hoc working group involved. Ten criteria were considered to define the vectorial capacity: vectorial competence, current abundance, expected temporal abundance, spatial distribution, longevity, biting rate, active dispersal capacity, trophic preferences for Suidae, probability of contact with domestic pigs and probability of contact with wild boar. Fourteen experts participated to the elicitation. For each BFA, experts proposed a score (between 0 and 3) for each of the above criteria with an index of uncertainty (between 1 and 4). Overall, all experts gave a weight for all criteria (by distributing 100 marbles). A global weighted sum of score per BFA was calculated permitting to rank the different BFAs in decreasing order. Finally, a regression tree analysis was used to group those BFAs with comparable likelihood to play a role in ASF transmission. Out of the ten considered criteria, the experts indicated vectorial competence, abundance and biting rate as the most important criteria. In the context of Metropolitan France, the stable fly (Stomoxys calcitrans) was ranked as the most probable BFA to be a vector of ASFV, followed by lice (Haematopinus suis), mosquitoes (Aedes, Culex and Anopheles), Culicoides and Tabanidea. Since scientific knowledge on their vectorial competence for ASF is scarce and associated uncertainty on expert elicitation moderate to high, more studies are however requested to investigate the potential vector role of these BFAs could have in ASFV spread, starting with Stomoxys calcitrans.

Mots-clés Agrovoc : Virus peste porcine africaine, Vecteur de maladie, Enquête, Arthropoda, Stomoxys calcitrans, Haematopinus suis, Aedes, Culex, Anopheles, Culicoides, Tabanidae, literature [EN]

Mots-clés géographiques Agrovoc : France

Mots-clés complémentaires : haematophagy

Mots-clés géographiques complémentaires : France métropolitaine

Mots-clés libres : African swine fever (ASF), Arthropods, Blood‐feeding vector, Culicoides, Fleas, Hard ticks, Lice, Mosquitoes, Ornithodoros, Pig, Sand flies, Soft ticks, Stomoxys fliesc, Tabanidae, Vectorial capacity, Vectorial competence, Virus, Wild boar

Classification Agris : L73 - Animal diseases

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

  • Saegerman Claude, Université de Liège (BEL) - auteur correspondant
  • Bonnet Sarah, ENVA (FRA)
  • Bouhsira Emilie, ENVT (FRA)
  • De Regge Nick, Scientific Direction Infectious Diseases in Animals (BEL)
  • Fite Johanna, ANSES (FRA)
  • Etore Florence, ANSES (FRA)
  • Garigliany Mutien-Marie, Université de Liège (BEL)
  • Jori Ferran, CIRAD-BIOS-UMR ASTRE (FRA) ORCID: 0000-0001-5451-7767
  • Lempereur Laetitia, Université de Liège (BEL)
  • Le Potier Marie-Frédérique, ANSES (FRA)
  • Quillery Elsa, ANSES (FRA)
  • Vergne Timothée, ENVT (FRA)
  • Vial Laurence, CIRAD-BIOS-UMR ASTRE (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/596462/)

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