Journal article

Lack of associations of alpha( )-thalassemia with the risk of Plasmodium falciparum and Plasmodium vivax infection and disease in a cohort of children aged 3-21 months from Papua New Guinea

Anna Rosanas-Urgell, Nicolas Senn, Patricia Rarau, John J Aponte, John C Reeder, Peter M Siba, Pascal Michon, Ivo Mueller

INTERNATIONAL JOURNAL FOR PARASITOLOGY | ELSEVIER SCI LTD | Published : 2012

Abstract

Despite consistent evidence of a protective effect of α(+)-thalassemia against severe Plasmodium falciparum disease, the mechanisms underlying this protection remain unknown. An increase in risk of Plasmodium vivax malaria in early childhood resulting in a cross-species protection against severe P. falciparum malaria has been proposed as a possible mechanism in Melanesian children. The association of α(+)-thalassemia genotypes with a risk of P. falciparum and P. vivax infection and uncomplicated illness was reassessed in a cohort of 1,112 Papua New Guinean children, followed from 3 to 21 months of age. Three hundred and eighty-nine (35.0%) children were homozygous for α(+)-thalassemia (-α/-α..

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