Figure 2.

Monthly trends of slide positivity rate (SPR) for malaria on island of Príncipe. IRS: indoor residual spraying; IPT: intermittent preventive therapy; LLINs: long-lasting insecticidal nets; ACT: artemisinin-based therapy.

Lee et al. Malaria Journal 2010 9:26   doi:10.1186/1475-2875-9-26
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