Figure 1From: Malaria incidence and prevalence on Pemba Island before the onset of the successful control intervention on the Zanzibar ArchipelagoRainfall and parasite prevalence by microscopic densities per microliter per 2-week period in two cohorts totaling 537 children on Pemba Island. Any microscope positive bloodfilm (red circle); greater than 1,000 parasites/microliter (green circle); greater than 5,000 parasites/microliter (orange circle); and greater than 10,000 parasites/microliter (grey circle).Back to article page