Does isometamidium chloride treatment protect tsetse flies from trypanosome infections during SIT campaigns?

Bouyer Jérémy. 2008. Does isometamidium chloride treatment protect tsetse flies from trypanosome infections during SIT campaigns?. Medical and Veterinary Entomology, 22 (2) : 140-143.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : African animal trypanosomosis is a major pathological constraint to cattle breeding across 10 million km2 of sub-Saharan West African countries infested by tsetse flies, their cyclic vectors. The release of sterile males (sterile insect technique [SIT]) is a potentially important control technique aimed at eliminating the vectors. Prior to release, tsetse are generally treated with isometamidium chloride, a trypanocide, to prevent them from transmitting parasites. The present study investigated the preventive action of isometamidium chloride (0.5 mg/L) on the subsequent susceptibility of tsetse released into the wild. A total of 1755 Glossina palpalis gambiensis Vanderplank and 744 Glossina tachinoides Westwood were released, of which 50 and 48, respectively, were recaptured 22¿43 days after release. Their probosces were analysed by polymerase chain reaction to identify mature infections with three trypanosome species (Trypanosoma vivax, Trypanosoma brucei sensu lato and Trypanosoma congolense savannah type). Two mature infections with T. vivax and four with T. congolense were detected, indicating that the use of this treatment regimen in an SIT campaign would not totally prevent sterile males from transmitting trypanosomes.

Mots-clés Agrovoc : Trypanosoma, chimioprévention, antiprotozoaire, Glossina, expérimentation, transmission des maladies, stérilisation, contrôle de maladies

Mots-clés géographiques Agrovoc : Burkina Faso

Mots-clés complémentaires : Isométamidium

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

• Bouyer Jérémy, CIRAD-BIOS-UPR Contrôle des maladies (BFA) ORCID: 0000-0002-1913-416X

Source : Cirad - Agritrop (https://agritrop.cirad.fr/544238/)

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