Biological larviciding against malaria vector mosquitoes with Bacillus thuringiensis israelensis (Bti) - Long term observations and assessment of repeatability during an additional intervention year of a large-scale field trial in rural Burkina Faso

The first line of malaria vector control to date mainly relies on the use of long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS). For integrated vector management, targeting the vector larvae with biological larvicides such as Bacillus thuringiensis israelensis (Bti) can be an...

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Main Authors: Peter Dambach (Author), Volker Winkler (Author), Till Bärnighausen (Author), Issouf Traoré (Author), Saidou Ouedraogo (Author), Ali Sié (Author), Rainer Sauerborn (Author), Norbert Becker (Author), Valérie R. Louis (Author)
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Published: Taylor & Francis Group, 2020-12-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Peter Dambach  |e author 
700 1 0 |a Volker Winkler  |e author 
700 1 0 |a Till Bärnighausen  |e author 
700 1 0 |a Issouf Traoré  |e author 
700 1 0 |a Saidou Ouedraogo  |e author 
700 1 0 |a Ali Sié  |e author 
700 1 0 |a Rainer Sauerborn  |e author 
700 1 0 |a Norbert Becker  |e author 
700 1 0 |a Valérie R. Louis  |e author 
245 0 0 |a Biological larviciding against malaria vector mosquitoes with Bacillus thuringiensis israelensis (Bti) - Long term observations and assessment of repeatability during an additional intervention year of a large-scale field trial in rural Burkina Faso 
260 |b Taylor & Francis Group,   |c 2020-12-01T00:00:00Z. 
500 |a 1654-9880 
500 |a 10.1080/16549716.2020.1829828 
520 |a The first line of malaria vector control to date mainly relies on the use of long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS). For integrated vector management, targeting the vector larvae with biological larvicides such as Bacillus thuringiensis israelensis (Bti) can be an effective additional mainstay. This study presents data from the second intervention year of a large-scale trial on biological larviciding with Bti that was carried out in 127 rural villages and a semi-urban town in Burkina Faso. Here we present the reductions in malaria mosquitoes that were achieved by continuing the initial interventions for an additional year, important to assess sustainability and repeatability of the results from the first intervention year. Larviciding was performed applying two different larviciding choices ((a) treatment of all environmental breeding sites, and (b) selective treatment of those that were most productive for Anopheles larvae indicated by remote sensing based risk maps). Adult Anopheles spp. mosquito abundance was reduced by 77.4% (full treatment) and 63.5% (guided treatment) compared to the baseline year. The results showed that malaria vector abundance can be dramatically reduced using biological larviciding and that this effect can be achieved and maintained over several consecutive transmission seasons. 
546 |a EN 
690 |a biological vector control 
690 |a sub-saharan africa 
690 |a malaria control 
690 |a large scale intervention trial 
690 |a Public aspects of medicine 
690 |a RA1-1270 
655 7 |a article  |2 local 
786 0 |n Global Health Action, Vol 13, Iss 1 (2020) 
787 0 |n http://dx.doi.org/10.1080/16549716.2020.1829828 
787 0 |n https://doaj.org/toc/1654-9880 
856 4 1 |u https://doaj.org/article/3fb14d2bc11b4feda46ceb544a4102e5  |z Connect to this object online.