Baited-boats : an innovative way to control riverine tsetse, vectors of sleeping sickness in West Africa

Article, Other literature type OPEN
Rayaisse, J. B. ; Salou, E. ; Courtin, Fabrice ; Yoni, W. ; Barry, I. ; Dofini, F. ; Kagbadouno, M. ; Camara, M. ; Torr, S. J. ; Solano, Philippe (2015)
  • Publisher: BioMed Central
  • Journal: volume 8 (eissn: 1756-3305)
  • Related identifiers: pmc: PMC4436790, doi: 10.1186/s13071-015-0851-0
  • Subject: Pirogue | qx_650 | qx_600 | wc_705 | Tsetse | Infectious Diseases | qx_505 | wa_110 | Mangrove | Research | Parasitology | Target

Background\ud \ud Human African Trypanosomiasis (HAT) is an important neglected tropical disease caused by Trypanosoma spp. parasites transmitted by species of tsetse fly (Glossina spp). The most important vectors of HAT are riverine tsetse and these can be controlled by attracting them to stationary baits such as insecticide-impregnated traps or targets deployed along the banks of rivers. However, the geographical nature of some riverine habitats, particularly mangroves but also extensive lake and river networks, makes deployment of baits difficult and limits their efficacy. It is known that tsetse are attracted by the movement of their hosts. Our hypothesis was that mounting a target on canoes typically used in Africa (‘pirogues’) would produce an effective means of attracting-and-killing riverine tsetse in extensive wetland habitats.\ud \ud Methods\ud \ud In Folonzo, southern Burkina Faso, studies were made of the numbers of tsetse attracted to a target (75 × 50 cm) of blue cloth and netting mounted on a pirogue moving along a river, versus the same target placed on the riverbank. The targets were covered with a sticky film which caught tsetse as they contacted the target.\ud \ud Results\ud \ud The pirogue-mounted target caught twice as many G. tachinoides and G. p. gambiensis, and 8 times more G. morsitans submorsitans than the stationary one (P < 0.001).\ud \ud Conclusion\ud \ud Pirogues are common vehicle for navigating the rivers, lakes and swamps of West Africa. The demonstration that tsetse can be attracted to targets mounted on such boats suggests that pirogues might provide a cost-effective and convenient platform for deploying targets to control tsetse in the mangrove systems of West Africa where HAT persists. Further studies to assess the impact of pirogue-mounted targets on tsetse populations in HAT foci and the protective value of targets for pirogue passengers are recommended.
  • References (21)
    21 references, page 1 of 3

    1. WHO/HTM/NTD. Accelerating work to overcome the global impact of neglected tropical diseases: a roadmap for implementation. WHO.2012. Fact Sheet N°259.

    2. Kagbadouno MS, Camara M, Rouamba J, Rayaisse JB, Traore IS, Onikoyamou MF, et al. Epidemiology of sleeping sickness in boffa (guinea): where Are the trypanosomes? PLoS Negl Trop Dis. 2012;6(12):e1949. doi:10.1371/ journal.pntd.0001949.

    3. Simarro PP, Franco JR, Diarra A, Ruiz Postigo A, Jannin J. Diversity of human African trypanosomiasis epidemiological settings requires fine-tuning control strategies to facilitate disease elimination. Res Rep Trop Med. 2013;4:1-6.

    4. Kohagne-Tongue L, MpengueM'eyi P, Mimpfoundi R, Louis FJ. Glossinafeeding habits and diversity of species of trypanosomes in an active focus ofhuman African trypanosomiasis in Gabon. Bull Soc Path Exot. 2010;103:264-71.

    5. Simon F, Mura M, Pages F, Morand G, Truc P, Louis F, et al. Urban transmissionof human African trypanosomiasis, Gabon. Emerg Infect Dis. 2012;18:165-7. doi:10.3201/eid1801.111384.

    6. Hargrove JW. Ovarian ages of tsetse flies (Diptera, Glossinidae) caught from mobile and stationary baits in the presence and absence of humans. Bull Entomol Res. 1991;81:43-50.

    7. Vale GA. The responses of tsetse flies (Diptera: Glossinidae) to mobile and stationary baits. Bull Entomol Res. 1974;64:545-88.

    8. Brady J. The visual responsiveness of the tsetse fly Glossina morsitans Westwood (Glossinidae) to moving objects: the effects of hunger, sex, host odour and stimulus characteristics. Bull Entomol Res. 1972;62:257-79.

    9. Laveissière C, Couret D. Essai de lute contre les glossines riveraines à l'aide d'écrans imprégnés d'insecticide. Cah ORSTOM SérEntMédParasitol. 1981;14(suppl4):271-83.

    10. Challier A, Laveissière C. Un nouveau piège pour la capture des glossines (Glossina : Diptera, Muscidae) : description et essais sur le terrain. Cah ORSTOM SérEntMédParasitol. 1973;11:251-62.

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