Human Plasmodium knowlesi Infection Detected by Rapid Diagnostic Tests for Malaria
Jaap J. van Hellemond, Marijke Rutten, Rob Koelewijn, Anne-Marie Zeeman, Jaco J. Verweij, Pieter J. Wismans, Clemens H. Kocken, and Perry J.J. van Genderen
Author affiliations: Erasmus University Medical Center, Rotterdam, the Netherlands (J.J. van Hellemond); Harbour Hospital and Institute of Tropical Diseases, Rotterdam (M. Rutten, R. Koelewijn, P.J. Wismans, P.J.J. van Genderen); Biomedical Primate Research Centre, Rijswijk, the Netherlands (A.-M. Zeeman, C.H. Klocken); Leiden University Medical Center, Leiden, the Netherlands (J.J. Verweij)
Figure 1. Morphology of Plasmodium knowlesi in a Giemsa-stained thin blood smear. Infected erythrocytes were not enlarged, lacked Schuffner stippling, and contained much pigment. Shown are examples of trophozoites (A–F), a schizont (G), and a gametocyte (H). Scale bars = 5 μm.
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