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Vaccination study using r-Pfen as an immunogen. Groups of five mice each were either nonimmunized (▴) (A), or immunized with an irrelevant His-tagged protein (Drosophila odorant binding protein OSF) (•) (B) or r-Pfen (▪) (C). The parasitemia profile of each mouse is shown in panels A to C. The average parasitemia and survival pattern for each group of mice are shown in panels D and E.
