Genetic diversity and genotype multiplicity of Plasmodium falciparum infections in symptomatic individuals living in Bangui (CAR).

Abstract:

:This study provides the first estimate of the genetic diversity and genotype multiplicity of Plasmodium falciparum infections in symptomatic individuals living in Bangui (Central African Republic, CAR). Three hundred thirty six clinical isolates were used for analysis of parasite population polymorphism and genotyped by nested-PCR of msp-1 block 2, and msp-2 block 3. We found a very high level of polymorphism, with, respectively, 17 and 25 different alleles at the msp-1 and msp-2 loci and a high percentage of multiclonal infections (42.7% with msp-1 and 76.7% with msp-2), with a mean of 1.7 genotype with msp-1 and 2.8 with msp-2. We observed that (i) multiclonal infections and allelic polymorphism of msp-2 were significantly more frequent in Southern districts than in Northern districts of Bangui suggesting that the epidemiological features of P. falciparum may vary within Bangui and (ii) showed that immunocompromised HIV-positive patients tend to have a lower average number of msp-2 allele per isolate than immunocompetent patients.

journal_name

Acta Trop

journal_title

Acta tropica

authors

Dolmazon V,Matsika-Claquin MD,Manirakiza A,Yapou F,Nambot M,Menard D

doi

10.1016/j.actatropica.2008.04.012

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

37-42

issue

1

eissn

0001-706X

issn

1873-6254

pii

S0001-706X(08)00096-X

journal_volume

107

pub_type

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