Publications des scientifiques de l'IRD

Sane R., Talla C., Diouf B., Sarr F. D., Diagne N., Faye J., Badiane A., Sembène P. M., Sokhna Cheikh, Toure-Balde A., Niang M. (2019). Low genetic diversity and complexity of submicroscopic Plasmodium falciparum infections among febrile patients in low transmission areas in Senegal. PLoS One, 14 (4), p. e0215755 [14 p.]. ISSN 1932-6203.

Titre du document
Low genetic diversity and complexity of submicroscopic Plasmodium falciparum infections among febrile patients in low transmission areas in Senegal
Année de publication
2019
Type de document
Article référencé dans le Web of Science WOS:000465519100047
Auteurs
Sane R., Talla C., Diouf B., Sarr F. D., Diagne N., Faye J., Badiane A., Sembène P. M., Sokhna Cheikh, Toure-Balde A., Niang M.
Source
PLoS One, 2019, 14 (4), p. e0215755 [14 p.] ISSN 1932-6203
Introduction Submicroscopic Plasmodium infections are common in malaria endemic countries, but very little studies have been done in Senegal. This study investigates the genetic diversity and complexity of submicroscopic P. falciparum infections among febrile patients in low transmission areas in Senegal. Materials and methods Hundred and fifty blood samples were collected from febrile individuals living in Dielmo and Ndiop (Senegal) between August 2014 and January 2015, tested for microscopic and submicroscopic P. falciparum infections and characterized for their genetic diversity and complexity of infections using msp-1 and msp-2 genotyping. Results Submicroscopic P. falciparum infections were 19.6% and 25% in Dielmo and Ndiop, respectively. K1 and 3D7 were the predominant msp-1 and msp-2 allelic types with respective frequencies of 67.36% and 67.10% in microscopic isolates and 58.24% and 78% in submicroscopic ones. Frequencies of msp-1 allelic types were statistically comparable between the studied groups (p>0.05), and were respectively 93.54% vs 87.5% for K1, 60% vs 54.83% for MAD20 and 41.93% vs 22.5% for RO33 while frequencies of msp-2 allelic types were significantly highest in the microscopy group for FC27 (41.93% vs 10%, Fisher's Exact Test, p = 0.001) and 3D7 (61.29% vs 32.5%, Fisher's Exact Test, p = 0.02). Multiplicities of infection were lowest in submicroscopic P. falciparum isolates. Conclusions The study revealed a high submicroscopic P. falciparum carriage among patients in the study areas, and that submicroscopic P. falciparum isolates had a lower genetic diversity and complexity of malaria infections.
Plan de classement
Santé : généralités [050] ; Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
SENEGAL
Localisation
Fonds IRD [F B010075680]
Identifiant IRD
fdi:010075680
Contact