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. 2011 May 9;140(3):479–490. doi: 10.1017/S0950268811000653

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Copyright © Cambridge University Press 2011 The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence <http://creativecommons.org/licenses/by-nc-sa/2.5/>. The written permission of Cambridge University Press must be obtained for commercial re-use.

The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence <http://creativecommons.org/licenses/by-nc-sa/2.5/>. The written permission of Cambridge University Press must be obtained for commercial re-use.

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Fig. 4 — Spatial and temporal heterogeneity in vector mosquito abundance. The house index (i.e. percentage of premises positive with water containers infested with Aedes larvae/pupae) was averaged at the district level. Since the survey conducted between 1994 and 1996 and the survey conducted between 2002 and 2004 were based upon different schemes, keys are presented for the individual periods.