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Parasitol Today. 1995 Mar;11(3):105-11.

Host age as a determinant of naturally acquired immunity to Plasmodium falciparum.

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1
Department of Parasitology, US Naval Medical Research Unit #2, American Embassy APO AP 96520-8132, USA. NAMRU2@WRAIR-EMHI.ARMY.MIL

Abstract

The usual course of infection by Plasmodium falciparum among adults who lack a history of exposure to endemic malaria is fulminant. The infection in adults living with hyper- to holoendemic malaria is chronic and benign. Naturally acquired immunity to falciparum malaria is the basis of this difference. Confusion surrounds an essential question regarding this process: What is its rate of onset? Opinions vary because of disagreement over the relationships between exposure to infection, antigenic polymorphism and naturally acquired immunity. In this review, Kevin Baird discusses these relationships against a backdrop of host age as a determinant of naturally acquired immunity to falciparum malaria.

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