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Investment in malaria control has increased dramatically since the Roll Back Malaria initiative was launched in 1998. To assess progress, investigators examined the change in malaria transmission intensity between 2000 and 2010 in Africa.
The researchers assembled data from Plasmodium falciparum prevalence surveys in malaria-endemic countries. They used these data together with spatially matched covariates in a Bayesian hierarchical space-time model to estimate the proportion of children aged 2 to 10 years with various parasitemia levels, indicated as the standardized P. falciparum parasite rate (PfPR2–10). They then derived estimates for 2000 and 2010 at a 1 × 1 km resolution and computed the number of individuals at each level of endemicit…