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Fig. 2 | Malaria Journal

Fig. 2

From: Effects of indoor residual spraying and outdoor larval control on Anopheles coluzzii from São Tomé and Príncipe, two islands with pre-eliminated malaria

Fig. 2

Annual average density of Anopheles mosquitoes by outdoor and indoor human landing catch (HLC) in São Tomé and Príncipe from 2004 to 2016. The average indoor and outdoor mosquito density in Sao Tome (blue and red line, respectively) was calculated from six sentinel sites in six districts (Micolo, Praia Gamboa, Trindade, Ribeira Afonso, Angolares, and Neves). The indoor and outdoor mosquito density in Príncipe (green and purple line, respectively) was calculated at one collection site, Porto Real. The Y axis (density) was shown in a scale factor of two. Mosquito density was substantially decreased during IRS control period (2004–2006). Larval control by Bti had long-term efficacy to keep the outdoor mosquito density under 10 (the dashed line)

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Malaria Journal

ISSN: 1475-2875

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