Figure 3From: Malaria morbidity and immunity among residents of villages with different Plasmodium falciparum transmission intensity in North-Eastern TanzaniaIncidence rates of febrile malaria episodes by age group. Panel A: Incidence rates calculated using village specific parasite density cut-offs in the definition of episodes. In Mgome (solid lines with filled circle) the cut-off was 5000 parasites per μl, in Ubiri (dotted lines with filled triangle) 1000 parasites per μl, and in Magamba (dashed lines with filled square) 40 parasites per μl. Panel B: Incidence rates calculated using a definition in which all fevers accompanied by positive slide were considered a febrile malaria episode.Back to article page