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Volume 23, Number 5—May 2017

Control of Malaria Vector Mosquitoes by Insecticide-Treated Combinations of Window Screens and Eave Baffles

Gerry F. KilleenComments to Author , John P. Masalu, Dingani Chinula, Emmanouil A. Fotakis, Deogratius R. Kavishe, David Malone, and Fredros Okumu
Author affiliations: Ifakara Health Institute, Ifakara, Tanzania (G.F. Killeen, J.P. Masalu, D.R. Kavishe, F. Okumu); Liverpool School of Tropical Medicine, Liverpool, UK (G.F. Killeen, D.R. Kavishe); National Malaria Control Centre, Lusaka, Zambia (D. Chinula); University of Crete Heraklion, Crete, Greece (E.A. Fotakis); Innovative Vector Control Consortium, Liverpool (D. Malone); University of the Witwatersrand, Johannesburg, South Africa (F.O. Okumu)

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Window screen and eave baffle treatments that were rotated through experimental huts with 3 IRS treatments for control of malaria vector mosquitoes, Tanzania*

Treatment no. Description Eaves baffled
Windows screened Treatment of window screen and eave baffle netting
Entrances Exits LC, mg/m2 PM, g/m2 BA
1 Negative control: no trapping or insecticide Yes No No 0 0 No
2 Partial negative control: trapping without insecticide Yes Yes Yes 0 0 No
3 Partial negative control: trapping without insecticide Yes Yes Yes 0 0 Yes
4 Trapping plus long-lasting LC and BA treatment Yes Yes Yes 55 0 Yes
5 Trapping plus varying dose PM treatments Yes Yes Yes 0 1 No
6 Yes Yes Yes 0 2 No
7 Yes Yes Yes 0 4 No
8 Trapping plus varying dose PM treatments with BA Yes Yes Yes 0 1 Yes
9 Yes Yes Yes 0 2 Yes
10 Yes Yes Yes 0 4 Yes
11 Trapping plus varying dose PM treatments with BA and LC
Yes Yes Yes 55 1 Yes
12 Yes Yes Yes 55 2 Yes
*Indoor residual spraying treatments of experimental huts used lambda-cyhalothin (30 mg/m2 in 4 huts), pirimiphos-methyl (2 g/m2 in 4 huts), or a negative control (water diluent only: 5 huts), which was applied to all inner surfaces of walls and ceilings. All doses are per square meter of treated netting (window screening and eave baffles) or wall and ceiling surface (IRS), so that these doses can be directly compared in terms of lethality and cost per unit area treated. The 26-day schedule applied to complete 1 full replicate of evaluation for duplicates of these 13 treatments, by rotating them through all 13 IRS-treated experimental huts, is detailed in Technical Appendix 1. BA, binding agent; IRS, indoor residual spraying; LC, lambda-cyhalothin; PM, primiphos-methyl.

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Page created: April 14, 2017
Page updated: April 14, 2017
Page reviewed: April 14, 2017
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