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Individual Plasmodium vivax msp1 variants within polyclonal P. vivax infections display different propensities for relapse.


ABSTRACT: Using a newly developed Plasmodium vivax merozoite surface protein 1 gene (Pvmsp1) heteroduplex tracking assay, we genotyped 107 P. vivax infections in individuals from Cambodia, 45 of whom developed recurrent parasitemia within 42 days. The majority of isolates were polyclonal, but recurrent parasitemias displayed fewer variants compared to initial parasitemias. Two Pvmsp1 gene variants occurred more frequently in the initial genotypes of those who developed recurrent parasitemia, representing the first time P. vivax variants associated with a higher risk of relapse have been described.

SUBMITTER: Lin JT 

PROVIDER: S-EPMC3318509 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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Individual Plasmodium vivax msp1 variants within polyclonal P. vivax infections display different propensities for relapse.

Lin Jessica T JT   Juliano Jonathan J JJ   Kharabora Oksana O   Sem Rithy R   Lin Feng-Chang FC   Muth Sinuon S   Ménard Didier D   Wongsrichanalai Chansuda C   Rogers William O WO   Meshnick Steven R SR  

Journal of clinical microbiology 20120111 4


Using a newly developed Plasmodium vivax merozoite surface protein 1 gene (Pvmsp1) heteroduplex tracking assay, we genotyped 107 P. vivax infections in individuals from Cambodia, 45 of whom developed recurrent parasitemia within 42 days. The majority of isolates were polyclonal, but recurrent parasitemias displayed fewer variants compared to initial parasitemias. Two Pvmsp1 gene variants occurred more frequently in the initial genotypes of those who developed recurrent parasitemia, representing  ...[more]

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