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2017•Open Forum Infectious DiseasesOpen access

Disease Severity and Effective Parasite Multiplication Rate in Falciparum Malaria

Hugh Kingston, Aniruddha Ghose, Katherine Plewes, Haruhiko Ishioka, Stije J. Leopold, Richard J. Maude, Simeon Kintu Paul, Benjamas Intharabut, K. Silamut, Charles J. Woodrow, Nicholas Day, Kesinee Chotivanich, Nicholas M. Anstey, Amir Hossain, Nicholas J. White, Arjen M. Dondorp

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Abstract

Patients presenting with severe falciparum malaria in a Bangladeshi tertiary hospital had higher total parasite burden, estimated by parasitemia and plasma PfHRP2, than uncomplicated malaria patients despite shorter fever duration. This suggests that higher parasite multiplication rates (PMR) contribute to causing the higher biomass found in severe disease. Compared with patients without a history of previous malaria, patients with previous malaria carried a lower parasite biomass with similar fever duration at presentation, suggesting that host immunity reduces the PMR.

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Patients presenting with severe falciparum malaria in a Bangladeshi tertiary hospital had higher total parasite burden, estimated by parasitemia and plasma PfHRP2, than uncomplicated malaria patients despite shorter fever duration. This suggests that higher parasite multiplication rates (PMR) contribute to causing the higher biomass found in severe disease. Compared with patients without a history of previous malaria, patients with previous malaria carried a lower parasite biomass with similar fever duration at presentation, suggesting that host immunity reduces the PMR.

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Available abstract

Patients presenting with severe falciparum malaria in a Bangladeshi tertiary hospital had higher total parasite burden, estimated by parasitemia and plasma PfHRP2, than uncomplicated malaria patients despite shorter fever duration. This suggests that higher parasite multiplication rates (PMR) contribute to causing the higher biomass found in severe disease. Compared with patients without a history of previous malaria, patients with previous malaria carried a lower parasite biomass with similar fever duration at presentation, suggesting that host immunity reduces the PMR.

Key concepts: Malaria, Parasitemia, Plasmodium falciparum, Medicine, Parasite hosting, Disease, Immunology, Internal medicine

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