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Evidence of bluetongue and Epizootic Haemorrhagic disease circulation on the island of Mayotte

Dommergues Laure, Viarouge Cyril, Metras Raphaëlle, Youssouffi Chouanibou, Sailleau Corinne, Zientara Stéphan, Cardinale Eric, Cetre-Sossah Catherine. 2019. Evidence of bluetongue and Epizootic Haemorrhagic disease circulation on the island of Mayotte. Acta Tropica, 191 : pp. 24-28.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : TROPICAL MEDICINE / Quartile : Q2, Sujet : PARASITOLOGY

Abstract : A cross-sectional study was conducted to explore the epidemiological situation in Mayotte regarding two orbiviruses: Bluetongue virus (BTV) and Epizootic Haemorrhagic Disease virus (EHDV). In all, 385 individual asymptomatic cattle were blood-sampled (one EDTA and one serum tube per animal) between February and June 2016. Antibody (ELISA) and genome prevalence (PCR) was assessed. Almost all the selected cattle showed antibodies against both BTV and EHDV, at 99.5% (CI95% [98.00, 100]) and 96.9% (CI95% [94.5, 98.3]), respectively. Most of the cattle acquired antibodies in their first years of age. EHDV and BTV genomes were detected in 25.2% (CI95% [21.1, 29.8]) and 18.2% (CI95% [14.6, 22.4]) of samples, respectively. Coinfection with BTV and EHDV was observed in 9.4% of samples (CI95% [6.8, 12.7]). Cattle under three years old were more frequently reported as positive for genome detection by PCR than older cattle. Five serotypes of BTV and one serotype of EHDV were identified from eight samples: BTV-4, BTV-9, BTV-11, BTV-15, BTV-19 and EHDV-6, of which some were reported in neighbouring areas. BTV and EHDV both circulate in Mayotte and in its surrounding territories.

Mots-clés géographiques Agrovoc : Mayotte

Mots-clés libres : Bluetongue, Epizootic hemorrhagic disease, Mayotte, Orbiviruses

Classification Agris : L73 - Animal diseases

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

Auteurs et affiliations

  • Dommergues Laure, CoopADEM (MYT) - auteur correspondant
  • Viarouge Cyril, ANSES (FRA)
  • Metras Raphaëlle, CIRAD-BIOS-UMR ASTRE (FRA)
  • Youssouffi Chouanibou, CoopADEM (MYT)
  • Sailleau Corinne, ANSES (FRA)
  • Zientara Stéphan, ANSES (FRA)
  • Cardinale Eric, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0002-3434-3541
  • Cetre-Sossah Catherine, CIRAD-BIOS-UMR ASTRE (REU)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/590440/)

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