The first specific detection of a highly pathogenic avian influenza virus (H5N1) in Ivory Coast

Couacy-Hymann Emmanuel, Danho T., Keita Djénéba, Bodjo Sanne Charles, Kouakou C., Koffi Yao Mathurin, Beudje F., Tripodi Astrid, De Benedictis P., Cattoli Giovanni. 2009. The first specific detection of a highly pathogenic avian influenza virus (H5N1) in Ivory Coast. Zoonoses and Public Health, 56 : 10-15.

Quartile : Q1, Sujet : VETERINARY SCIENCES / Quartile : Q3, Sujet : INFECTIOUS DISEASES

Résumé : The Virology Laboratory of the Central Laboratory of Animal Diseases in Ivory Coast at Bingerville received samples of wild and domestic avian species between February and December 2006. An RT-PCR technique was used to test for avian influenza (AI) and highly pathogenic AI subtype viruses. Among 2125 samples, 16 were type A positive; of which, 12 were later confirmed to be H5N1. Fifteen of these 16 type A positive samples were inoculated into the chorioallantoic cavity of 11-day-old embryonated hens¿ eggs for virus isolation. Eight produced virus with hemagglutination titres from 1/64 to 1/512. The 4/16 M-RT-PCR positive samples, which were H5N1 negative, were shown to be H7 subtype negative. The diagnostic efficiency of the laboratory for the surveillance of H5N1 in Ivory Coast was demonstrated. The positive cases of H5N1 were from a sparrowhawk (Accipter nisus); live market poultry and in free-range poultry, where the mortality rate was approximately 20% (2/10) and 96.7% (29/30) respectively. Currently, investigations into intensive poultry farms have proved negative for H5N1. No human cases have been reported this time.

Mots-clés Agrovoc : agent pathogène virulent, surveillance épidémiologique, Influenzavirus aviaire, volaille, oiseau, grippe aviaire

Mots-clés géographiques Agrovoc : Côte d'Ivoire

Classification Agris : L73 - Maladies des animaux

Champ stratégique Cirad : Axe 4 (2005-2013) - Santé animale et maladies émergentes

Auteurs et affiliations

• Couacy-Hymann Emmanuel, LANADA (CIV)
• Danho T., LANADA (CIV)
• Keita Djénéba, CIRAD-BIOS-UPR Contrôle des maladies (FRA)
• Bodjo Sanne Charles, IAEA (AUT)
• Kouakou C., LANADA (CIV)
• Koffi Yao Mathurin, LANADA (CIV)
• Beudje F., LANADA (CIV)
• Tripodi Astrid, FAO (ITA)
• De Benedictis P., OIE (ITA)
• Cattoli Giovanni, Istituto zooprofilattico sperimentale delle Venezie (ITA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/549414/)

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