High levels of genetic diversity of Plasmodium falciparum populations in Papua New Guinea despite variable infection prevalence.

Détails

ID Serval
serval:BIB_BCF251A42DA0
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
High levels of genetic diversity of Plasmodium falciparum populations in Papua New Guinea despite variable infection prevalence.
Périodique
American Journal of Tropical Medicine and Hygiene
Auteur(s)
Barry A.E., Schultz L., Senn N., Nale J., Kiniboro B., Siba P.M., Mueller I., Reeder J.C.
ISSN
1476-1645 (Electronic)
ISSN-L
0002-9637
Statut éditorial
Publié
Date de publication
2013
Volume
88
Numéro
4
Pages
718-725
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
High levels of genetic diversity in Plasmodium falciparum populations are an obstacle to malaria control. Here, we investigate the relationship between local variation in malaria epidemiology and parasite genetic diversity in Papua New Guinea (PNG). Cross-sectional malaria surveys were performed in 14 villages spanning four distinct malaria-endemic areas on the north coast, including one area that was sampled during the dry season. High-resolution msp2 genotyping of 2,147 blood samples identified 761 P. falciparum infections containing a total of 1,392 clones whose genotypes were used to measure genetic diversity. Considerable variability in infection prevalence and mean multiplicity of infection was observed at all of the study sites, with the area sampled during the dry season showing particularly striking local variability. Genetic diversity was strongly associated with multiplicity of infection but not with infection prevalence. In highly endemic areas, differences in infection prevalence may not translate into a decrease in parasite population diversity.
Mots-clé
Adult, Alleles, Antigens, Protozoan/blood, Antigens, Protozoan/genetics, Base Sequence, Child, Cross-Sectional Studies, Disease Transmission, Infectious/prevention & control, Endemic Diseases/prevention & control, Gene Frequency, Genetic Variation, Genotype, Haplotypes, Humans, Malaria, Falciparum/epidemiology, Malaria, Falciparum/parasitology, Papua New Guinea/epidemiology, Plasmodium falciparum/classification, Plasmodium falciparum/genetics, Prevalence, Protozoan Proteins/blood, Protozoan Proteins/genetics, Seasons, Young Adult
Pubmed
Open Access
Oui
Création de la notice
22/08/2014 13:12
Dernière modification de la notice
20/08/2019 15:31
Données d'usage