Indoor use of attractive toxic sugar bait in combination with long-lasting insecticidal net against pyrethroid-resistant Anopheles gambiae: an experimental hut trial in Mbé, central Côte d'Ivoire.

Furnival-Adams, JEC ; Camara, S ; et al.

In: Malaria journal, Jg. 19 (2020-01-07), Heft 1, S. 11

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Background: Indoor attractive toxic sugar bait (ATSB) has potential as a supplementary vector-control and resistance-management tool, offering an alternative mode of insecticide delivery to current core vector-control interventions, with potential to deliver novel insecticides. Given the high long-lasting insecticidal bed net (LLIN) coverage across Africa, it is crucial that the efficacy of indoor ATSB in combination with LLINs is established before it is considered for wider use in public health.

Methods: An experimental hut trial to evaluate the efficacy of indoor ATSB traps treated with 4% boric acid (BA ATSB) or 1% chlorfenapyr (CFP ATSB) in combination with untreated nets or LLINs (holed or intact), took place at the M'bé field station in central Côte d'Ivoire against pyrethroid resistant Anopheles gambiae sensu lato.

Results: The addition of ATSB to LLINs increased the mortality rates of wild pyrethroid-resistant An. gambiae from 19% with LLIN alone to 28% with added BA ATSB and to 39% with added CFP ATSB (p < 0.001). Anopheles gambiae mortality with combined ATSB and untreated net was similar to that of combined ATSB and LLIN regardless of which insecticide was used in the ATSB. The presence of holes in the LLIN did not significantly affect ATSB-induced An. gambiae mortality. Comparative tests against pyrethroid resistant and susceptible strains using oral application of ATSB treated with pyrethroid demonstrated 66% higher survival rate among pyrethroid-resistant mosquitoes.

Conclusion: Indoor ATSB traps in combination with LLINs enhanced the control of pyrethroid-resistant An. gambiae. However, many host-seeking An. gambiae entering experimental huts with indoor ATSB exited into the verandah trap without sugar feeding when restricted from a host by a LLIN. Although ATSB has potential for making effective use of classes of insecticide otherwise unsuited to vector control, it does not exempt potential selection of resistance via this route.

Titel:	Indoor use of attractive toxic sugar bait in combination with long-lasting insecticidal net against pyrethroid-resistant Anopheles gambiae: an experimental hut trial in Mbé, central Côte d'Ivoire.
Autor/in / Beteiligte Person:	Furnival-Adams, JEC ; Camara, S ; Rowland, M ; Koffi, AA ; Ahoua Alou, LP ; Oumbouke, WA ; N'Guessan, R
Link:	Zum Volltext
Zeitschrift:	Malaria journal, Jg. 19 (2020-01-07), Heft 1, S. 11
Veröffentlichung:	London : BioMed Central, [2002-, 2020
Medientyp:	academicJournal
ISSN:	1475-2875 (electronic)
DOI:	10.1186/s12936-019-3095-1
Schlagwort:	Animals Boric Acids Cote d'Ivoire Culex Female Humans Insecticide-Treated Bednets Male Mosquito Control methods Survival Rate Anopheles drug effects Insecticide Resistance drug effects Insecticides pharmacology Pyrethrins pharmacology Sugars toxicity
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [Malar J] 2020 Jan 07; Vol. 19 (1), pp. 11. <i>Date of Electronic Publication: </i>2020 Jan 07. MeSH Terms: Anopheles / drug effects ; Insecticide Resistance / drug effects ; Insecticides / pharmacology ; Pyrethrins / pharmacology ; Sugars / *toxicity ; Animals ; Boric Acids ; Cote d'Ivoire ; Culex ; Female ; Humans ; Insecticide-Treated Bednets ; Male ; Mosquito Control / methods ; Survival Rate References: J Econ Entomol. 2003 Oct;96(5):1559-62. (PMID: 14650531) ; Lancet Infect Dis. 2010 Aug;10(8):545-55. (PMID: 20637696) ; Malar J. 2010 Jul 21;9:210. (PMID: 20663142) ; Int J Parasitol. 2006 Sep;36(10-11):1077-80. (PMID: 16860326) ; Lancet. 2018 Jun 16;391(10138):2415-2416. (PMID: 29916383) ; Lancet. 2018 Apr 21;391(10130):1577-1588. (PMID: 29655496) ; Acta Trop. 2007 Apr;102(1):69-78. (PMID: 17466253) ; Med Vet Entomol. 2006 Sep;20(3):308-16. (PMID: 17044882) ; Proc Natl Acad Sci U S A. 2015 Sep 29;112(39):12081-6. (PMID: 26324912) ; PLoS One. 2013 Dec 19;8(12):e84168. (PMID: 24367638) ; Parasit Vectors. 2018 Jan 8;11(1):19. (PMID: 29310704) ; Trends Parasitol. 2016 Mar;32(3):187-196. (PMID: 26826784) ; Malar J. 2015 Aug 05;14:301. (PMID: 26242186) ; Malar J. 2018 Jan 10;17(1):22. (PMID: 29321011) ; Malar J. 2012 Jan 04;11:3. (PMID: 22217265) ; Malar J. 2012 Feb 01;11:31. (PMID: 22297155) ; Trop Med Int Health. 2010 Jan;15(1):127-31. (PMID: 19891759) ; Annu Rev Entomol. 1992;37:91-112. (PMID: 1539942) ; Annu Rev Entomol. 1995;40:443-74. (PMID: 7810991) ; Malar J. 2013 May 04;12:151. (PMID: 23641777) Contributed Indexing: Keywords: Anopheles gambiae; Attractive toxic sugar bait; Resistance management; Sugar feeding behaviour Substance Nomenclature: 0 (Boric Acids) ; 0 (Insecticides) ; 0 (Pyrethrins) ; 0 (Sugars) ; NWI20P05EB (chlorfenapyr) ; R57ZHV85D4 (boric acid) Entry Date(s): Date Created: 20200109 Date Completed: 20200608 Latest Revision: 20200608 Update Code: 20240513 PubMed Central ID: PMC6947962

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