Figure 8.

Using blood spot eluates to estimate malaria transmission intensity in Uganda. Observed (•) and estimated (line) age-specific prevalence of antibodies to MSP-1₁₉ derived from blood spots obtained from parasite-negative individuals presenting at medical centres in (a) Rukungiri District (N= 1020 ; λ = 0.076; altitude 150–1,767 m) and (b) Kabale District (N= 958 ; λ = 0.009; altitude 1,948–2,420 m) Uganda.