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Fig. 2 | Malaria Journal

Fig. 2

From: In vitro invasion inhibition assay using antibodies against Plasmodium knowlesi Duffy binding protein alpha and apical membrane antigen protein 1 in human erythrocyte-adapted P. knowlesi A1-H.1 strain

Fig. 2

Recognition of PkDBPα and PkAMA1 protein in the parasite and human patients. a Immunofluorescence assay of anti-PkDBPα and anti-PkAMA1 antibodies with PkA1-H.1 schizont. DAPI, 4′,6-diaminidino-2-phenylindole. Bars indicate 5 μm. b The humoral immune response of PkDBPα and PkAMA1. The IgG response is represented by normalized mean fluorescence intensity [MFI]: MFI of the test sample/[MFI + 2 standard deviations]. P patient serum, H healthy individual serum. Black circle, individual patient serum; white circle, healthy individual serum; double asterisks, p < 0.001

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