ArticlePloS one2017
Histidine-rich protein 2 (pfhrp2) and pfhrp3 gene deletions in Plasmodium falciparum isolates from select sites in Brazil and Bolivia.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 4 of them syntheses that pooled it.
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Who cites it
44 citing papers in PubMed, 4 syntheses or guidelines pooled it, 79 citations in OpenAlex.
- Performance of rapid diagnostic tests for malaria diagnosis in Nigeria: a systematic review and meta-analysis.Malaria journal · 2025Pooled it
- Plasmodium falciparum histidine-rich protein 2 and 3 genes deletion in global settings (2010-2021): a systematic review and meta-analysis.Malaria journal · 2022Pooled it
- Impact of Plasmodium falciparum pfhrp2 and pfhrp3 gene deletions on malaria control worldwide: a systematic review and meta-analysis.Malaria journal · 2021Pooled it
- Prevalence ofBulletin of the World Health Organization · 2020Pooled it
- Aptamer-Based Biosensors for the Detection of Malaria.Biosensors · 2026Review
- Are pfhrp2 and pfhrp3 Deletions a Concern in Latin America? A Critical Review.Pathogens (Basel, Switzerland) · 2026Review
- Local variability inMalariaWorld journal · 2026Article
- Cryptic absence and genetic variation of Plasmodium falciparum PfHRP2 and PfHRP3 from isolates in Papua, Indonesia.Scientific reports · 2025Article
- Genetic Characterization of Plasmodium falciparum Histidine-Rich Protein 2 Deletions and Their Impact on Malaria Interventions in Odisha, India.The American journal of tropical medicine and hygiene · 2025Article
- Very low prevalence of Plasmodium falciparum histidine-rich protein 2 (pfhrp2) gene deletion in the Brazil, Venezuela, and Guyana tri-border.Scientific reports · 2025Article
- Plasmodium falciparum with pfhrp2 and pfhrp3 gene deletions in asymptomatic malaria infections in the Lake Victoria region, Kenya.Tropical medicine and health · 2024Article
- Histidine-rich protein (hrp) 2-based RDT false-negatives and Plasmodium falciparum hrp 2 and 3 gene deletions in low, seasonal and intense perennial transmission zones in Cameroon: a cross - sectional study.BMC infectious diseases · 2024Article
- High Frequency of Deletions in theTropical medicine and infectious disease · 2024Article
- Aptamer-Based Technologies for Parasite Detection.Sensors (Basel, Switzerland) · 2023Review
- Low frequency ofFrontiers in epidemiology · 2023Article
- A world free of malaria: It is time for Africa to actively champion and take leadership of elimination and eradication strategies.African health sciences · 2022Article
- Gene Coverage Count and Classification (GCMalaria journal · 2022Article
- Spatiotemporal dynamics of Plasmodium falciparum histidine-rich protein 2 and 3 deletions in Peru.Scientific reports · 2022Article
- Evidence-Based Malaria Control and Elimination in the Amazon: Input from the International Center of Excellence in Malaria Research Network in Peru and Brazil.The American journal of tropical medicine and hygiene · 2022Review
- Factors Affecting the Performance of HRP2-Based Malaria Rapid Diagnostic Tests.Tropical medicine and infectious disease · 2022Review
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Authors and funding
15 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
More than 80% of available malaria rapid diagnostic tests (RDTs) are based on the detection of histidine-rich protein-2 (PfHRP2) for diagnosis of Plasmodium falciparum malaria. Recent studies have shown the genes that code for this protein and its paralog, histidine-rich protein-3 (PfHRP3), are absent in parasites from the Peruvian Amazon Basin. Lack of PfHRP2 protein through deletion of the pfhrp2 gene leads to false-negative RDT results for P. falciparum. We have evaluated the extent of pfhrp2 and pfhrp3 gene deletions in a convenience sample of 198 isolates from six sites in three states across the Brazilian Amazon Basin (Acre, Rondonia and Para) and 25 isolates from two sites in Bolivia collected at different times between 2010 and 2012. Pfhrp2 and pfhrp3 gene and their flanking genes on chromosomes 7 and 13, respectively, were amplified from 198 blood specimens collected in Brazil. In Brazil, the isolates collected in Acre state, located in the western part of the Brazilian Amazon, had the highest percentage of deletions for pfhrp2 25 (31.2%) of 79, while among those collected in Rondonia, the prevalence of pfhrp2 gene deletion was only 3.3% (2 out of 60 patients). In isolates from Para state, all parasites were pfhrp2-positive. In contrast, we detected high proportions of isolates from all 3 states that were pfhrp3-negative ranging from 18.3% (11 out of 60 samples) to 50.9% (30 out of 59 samples). In Bolivia, only one of 25 samples (4%) tested had deleted pfhrp2 gene, while 68% (17 out of 25 samples) were pfhrp3-negative. Among the isolates tested, P. falciparum pfhrp2 gene deletions were present mainly in those from Acre State in the Brazilian Amazon. These results indicate it is important to reconsider the use of PfHRP2-based RDTs in the western region of the Brazilian Amazon and to implement appropriate surveillance systems to monitor pfhrp2 gene deletions in this and other parts of the Amazon region.
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