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Djohan V., Kaba D., Rayaisse J. B., Dayo G. K., Coulibaly B., Salou E., Dofini F., Kouadio A. D. K., Menan H., Solano Philippe. (2015). Detection and identification of pathogenic trypanosome species in tsetse flies along the Comoe River in Cote d'Ivoire. Parasite, 22, p. art. 18 [7 p.]. ISSN 1252-607X.

Titre du document
Detection and identification of pathogenic trypanosome species in tsetse flies along the Comoe River in Cote d'Ivoire
Année de publication
2015
Type de document
Article référencé dans le Web of Science WOS:000355543600001
Auteurs
Djohan V., Kaba D., Rayaisse J. B., Dayo G. K., Coulibaly B., Salou E., Dofini F., Kouadio A. D. K., Menan H., Solano Philippe
Source
Parasite, 2015, 22, p. art. 18 [7 p.] ISSN 1252-607X
In order to identify pathogenic trypanosomes responsible for African trypanosomiasis, and to better understand tsetse-trypanosome relationships, surveys were undertaken in three sites located in different eco-climatic areas in Cote d'Ivoire during the dry and rainy seasons. Tsetse flies were caught during five consecutive days using biconical traps, dissected and microscopically examined looking for trypanosome infection. Samples from infected flies were tested by PCR using specific primers for Trypanosoma brucei s.l., T. congolense savannah type, T. congolense forest type and T. vivax. Of 1941 tsetse flies caught including four species, i.e. Glossina palpalis palpalis, G. p. gambiensis, G. tachinoides and G. medicorum, 513 (26%) were dissected and 60 (12%) were found positive by microscopy. Up to 41% of the infections were due to T. congolense savannah type, 30% to T. vivax, 20% to T. congolense forest type and 9% due to T. brucei s.l. All four trypanosome species and subgroups were identified from G. tachinoides and G. p. palpalis, while only two were isolated from G. p. gambiensis (T. brucei s.l., T. congolense savannah type) and G. medicorum (T. congolense forest, savannah types). Mixed infections were found in 25% of cases and all involved T. congolense savannah type with another trypanosome species. The simultaneous occurrence of T. brucei s.l., and tsetse from the palpalis group may suggest that human trypanosomiasis can still be a constraint in these localities, while high rates of T. congolense and T. vivax in the area suggest a potential risk of animal trypanosomiasis in livestock along the Comoe River.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
COTE D'IVOIRE
Localisation
Fonds IRD [F B010064682]
Identifiant IRD
fdi:010064682
Contact