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Genotyping of the parasite isolates from patients with recurrent parasitemias within 28 days after chloroquine-primaquine treatment. P. vivax parasites at day zero and the day of parasite recurrence (day 7, 14, and 28) were genotyped by PCR amplification of the pvmsp3α locus and by restriction digestion with either HhaI or AluI of the PCR products.
