Fig. 1From: The persistence of naturally acquired antibodies and memory B cells specific to rhoptry proteins of Plasmodium vivax in patients from areas of low malaria transmissionFlow chart of the sample organization in this study. Each dashed line refers to the sample which was taken for further experimentation. a Subjects who had complete follow up at all time points of cohort study. b Subjects who had PBMCs available for flow cytometric analysis and ELISPOT assay, and plasma available for ELISA technique at 18 months post-infectionBack to article page