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Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa
Plasmodium falciparum parasites carrying deletions of histidine-rich protein 2 and 3 genes, pfhrp2 and pfhrp3, respectively, are likely to escape detection via HRP2-based rapid diagnostic tests (RDTs) and, consequently, treatment, posing a major risk to both the health of the infected individual and...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054520/ https://www.ncbi.nlm.nih.gov/pubmed/36986377 http://dx.doi.org/10.3390/pathogens12030455 |
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author | Krueger, Tina Ikegbunam, Moses Lissom, Abel Sandri, Thaisa Lucas Ntabi, Jacques Dollon Mbama Djontu, Jean Claude Baina, Marcel Tapsou Lontchi, Roméo Aimé Laclong Maloum, Moustapha Ella, Givina Zang Agonhossou, Romuald Akoton, Romaric Djogbenou, Luc Borrmann, Steffen Held, Jana Ntoumi, Francine Adegnika, Ayola Akim Kremsner, Peter Gottfried Kreidenweiss, Andrea |
author_facet | Krueger, Tina Ikegbunam, Moses Lissom, Abel Sandri, Thaisa Lucas Ntabi, Jacques Dollon Mbama Djontu, Jean Claude Baina, Marcel Tapsou Lontchi, Roméo Aimé Laclong Maloum, Moustapha Ella, Givina Zang Agonhossou, Romuald Akoton, Romaric Djogbenou, Luc Borrmann, Steffen Held, Jana Ntoumi, Francine Adegnika, Ayola Akim Kremsner, Peter Gottfried Kreidenweiss, Andrea |
author_sort | Krueger, Tina |
collection | PubMed |
description | Plasmodium falciparum parasites carrying deletions of histidine-rich protein 2 and 3 genes, pfhrp2 and pfhrp3, respectively, are likely to escape detection via HRP2-based rapid diagnostic tests (RDTs) and, consequently, treatment, posing a major risk to both the health of the infected individual and malaria control efforts. This study assessed the frequency of pfhrp2- and pfhrp3-deleted strains at four different study sites in Central Africa (number of samples analyzed: Gabon N = 534 and the Republic of Congo N = 917) and West Africa (number of samples analyzed: Nigeria N = 466 and Benin N = 120) using a highly sensitive multiplex qPCR. We found low prevalences for pfhrp2 (1%, 0%, 0.03% and 0) and pfhrp3 single deletions (0%, 0%, 0.03% and 0%) at all study sites (Gabon, the Republic of Congo, Nigeria and Benin, respectively). Double-deleted P. falciparum were only found in Nigeria in 1.6% of all internally controlled samples. The results of this pilot investigation do not point towards a high risk for false-negative RDT results due to pfhrp2/pfhrp3 deletions in Central and West African regions. However, as this scenario can change rapidly, continuous monitoring is essential to ensure that RDTs remain a suitable tool for the malaria diagnostic strategy. |
format | Online Article Text |
id | pubmed-10054520 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100545202023-03-30 Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa Krueger, Tina Ikegbunam, Moses Lissom, Abel Sandri, Thaisa Lucas Ntabi, Jacques Dollon Mbama Djontu, Jean Claude Baina, Marcel Tapsou Lontchi, Roméo Aimé Laclong Maloum, Moustapha Ella, Givina Zang Agonhossou, Romuald Akoton, Romaric Djogbenou, Luc Borrmann, Steffen Held, Jana Ntoumi, Francine Adegnika, Ayola Akim Kremsner, Peter Gottfried Kreidenweiss, Andrea Pathogens Article Plasmodium falciparum parasites carrying deletions of histidine-rich protein 2 and 3 genes, pfhrp2 and pfhrp3, respectively, are likely to escape detection via HRP2-based rapid diagnostic tests (RDTs) and, consequently, treatment, posing a major risk to both the health of the infected individual and malaria control efforts. This study assessed the frequency of pfhrp2- and pfhrp3-deleted strains at four different study sites in Central Africa (number of samples analyzed: Gabon N = 534 and the Republic of Congo N = 917) and West Africa (number of samples analyzed: Nigeria N = 466 and Benin N = 120) using a highly sensitive multiplex qPCR. We found low prevalences for pfhrp2 (1%, 0%, 0.03% and 0) and pfhrp3 single deletions (0%, 0%, 0.03% and 0%) at all study sites (Gabon, the Republic of Congo, Nigeria and Benin, respectively). Double-deleted P. falciparum were only found in Nigeria in 1.6% of all internally controlled samples. The results of this pilot investigation do not point towards a high risk for false-negative RDT results due to pfhrp2/pfhrp3 deletions in Central and West African regions. However, as this scenario can change rapidly, continuous monitoring is essential to ensure that RDTs remain a suitable tool for the malaria diagnostic strategy. MDPI 2023-03-14 /pmc/articles/PMC10054520/ /pubmed/36986377 http://dx.doi.org/10.3390/pathogens12030455 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Krueger, Tina Ikegbunam, Moses Lissom, Abel Sandri, Thaisa Lucas Ntabi, Jacques Dollon Mbama Djontu, Jean Claude Baina, Marcel Tapsou Lontchi, Roméo Aimé Laclong Maloum, Moustapha Ella, Givina Zang Agonhossou, Romuald Akoton, Romaric Djogbenou, Luc Borrmann, Steffen Held, Jana Ntoumi, Francine Adegnika, Ayola Akim Kremsner, Peter Gottfried Kreidenweiss, Andrea Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title | Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title_full | Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title_fullStr | Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title_full_unstemmed | Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title_short | Low Prevalence of Plasmodium falciparum Histidine-Rich Protein 2 and 3 Gene Deletions—A Multiregional Study in Central and West Africa |
title_sort | low prevalence of plasmodium falciparum histidine-rich protein 2 and 3 gene deletions—a multiregional study in central and west africa |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054520/ https://www.ncbi.nlm.nih.gov/pubmed/36986377 http://dx.doi.org/10.3390/pathogens12030455 |
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