Mapping African animal trypanosomosis risk: the landscape approach

Guerrini Laure, Bouyer Jérémy. 2007. Mapping African animal trypanosomosis risk: the landscape approach. Veterinaria Italiana, 43 (3) : 643-654.

Titre italien : Mappatura del rischio per le tripanosomiasi africane: l¿approccio basato sull¿analisi ambientale (riassunto)

Résumé : African animal trypanosomosis (AAT) is a major hindrance to cattle breeding in the Mouhoun River Basin of Burkina Faso. The authors describe a landscape approach that enables the mapping of tsetse densities and AAT risk along the Mouhoun River loop (702 km long) in Burkina Faso. Three epidemiological landscapes were described: the first and most dangerous corresponded to protected forests and their border areas, with a 0.74 apparent density of infectious fly per trap per day (ADTi), the second to a partially disturbed vegetal formation, with a 0.20 ADTi and the third to a completely disturbed landscape with a 0.08 ADTi. Using this risk indicator, the first landscape was 3.92 more risky than the second which was 3.13 more risky than the last. Similar infectious rates were found in all landscapes (approximately 8%) but tsetse apparent densities dropped significantly (p<0.001) in half-disturbed (2.66) and disturbed landscapes (0.80) in comparison to the natural and border landscapes (11.77). Females were significantly younger (mean physiological age of 29 days) only in the most disturbed landscape (p<0.05) than in the two others one (41 days). According to these results, practical implications of stratifying AAT risk and mapping tsetse densities in vector control campaigns are discussed.

Mots-clés Agrovoc : trypanosomose, Trypanosoma, épidémiologie, analyse du risque, végétation, surveillance épidémiologique, cartographie

Mots-clés géographiques Agrovoc : Burkina Faso

Mots-clés complémentaires : Trypanosomose animale

Classification Agris : L72 - Organismes nuisibles des animaux
L73 - Maladies des animaux

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

Auteurs et affiliations

• Guerrini Laure, CIRAD-BIOS-UPR Epidémiologie (BFA)
• Bouyer Jérémy, CIRAD-BIOS-UPR Epidémiologie (BFA) ORCID: 0000-0002-1913-416X

Source : Cirad - Agritrop (https://agritrop.cirad.fr/546449/)

Métriques

[ Page générée et mise en cache le 2024-03-29 ]