Different Plasmodium species available in our laboratories were used in this study: P. falciparum (3D7, FCR3, W2, D6, Dd2, V1-S, Nigeria, Santa Lucia), P. vivax (South Vietnam IV), P. malariae (Uganda I), P. knowlesi (Nuri) and P. ovale (Nigeria I). DNA from 50 clinical samples available from the CDC molecular diagnostic parasitology reference laboratory (Dr. A. DaSilva) (10 non-malaria samples, 13 P. falciparum, 9 P. vivax, 1 P. malariae, 11 P. ovale, 2 P. falciparum/P. malariae, 1 P. vivax/P. ovale, 2 P. falciparum/P. ovale mixed infections and 1 P. knowlesi; parasitemia data not available) were used. In addition, a set of 69 P. falciparum positive samples from a study in Kenya were tested anonymously (microscopic parasitemia range of 1230–231,040 parasites/µl).
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