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International funding for malaria control has raised significantly in the past decade, leading to large-scale indoor residual spraying campaigns, to the distribution of insecticidetreated bed nets, and to the introduction of artemisinin-based combination treatments. An encouraging reduction of malaria cases has been reported in a number of countries, but malaria remains a major public health problem worldwide (WHO, 2010). People living in the poorest countries are the most vulnerable. Therefore, it remains a challenge to ensure that high levels of coverage and caution are maintained and that efforts aimed at developing an effective and affordable vaccine would be amplified.
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Niko Speybroeck (2011) studied this question.
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