ArticleThe Journal of infectious diseases2019
pfhrp2 and pfhrp3 Gene Deletions That Affect Malaria Rapid Diagnostic Tests for Plasmodium falciparum: Analysis of Archived Blood Samples From 3 African Countries.
Article in The Journal of infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.
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Who cites it
48 citing papers in PubMed, 2 syntheses or guidelines pooled 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 of Plasmodium falciparum field isolates with deletions in histidine-rich protein 2 and 3 genes in context with sub-Saharan Africa and India: a systematic review and meta-analysis.Malaria journal · 2020Pooled it
- Performance of a sensitive haemozoin-based malaria diagnostic test validated for vivax malaria diagnosis in Brazilian Amazon.Malaria journal · 2021Trial
- Prevalence ofThe American journal of tropical medicine and hygiene · 2020Trial
- Absence of false negative RDT results due to pfhrp2 deletion among symptomatic malaria infections in Kenya: findings from the 2022 Kenya national longitudinal surveillance of pfhrp2/3 deletions.Malaria journal · 2026Article
- False-positive Malaria Rapid Diagnostic Tests are Prevalent Among Children Under 5 Years of Age in Uganda.The Journal of infectious diseases · 2026Article
- Resurgence of malaria in Ethiopia: a national landscape analysis of systemic and operational gaps.Malaria journal · 2026Article
- Diagnostic challenges of histidine-rich protein 2-based rapid diagnostic tests due to pfhrp2 and pfhrp3 gene deletions in asymptomatic malaria in Tanzania.Infectious diseases of poverty · 2026Article
- Are HRP2/3 deletions silently crippling malaria rapid diagnostic tests?The Indian journal of medical research · 2026Review
- Local variability inMalariaWorld journal · 2026Article
- First report of pfhrp2 and pfhrp3 gene deletions compromising HRP2-based malaria rapid diagnostic tests in Malawi.Infectious diseases of poverty · 2025Article
- Comparison of major, minor and junctional circumsporozoite protein epitopes for malaria vaccine design.NPJ vaccines · 2025Article
- Prevalence of Plasmodium falciparum parasites with pfhrp2 exon 2 gene deletion in symptomatic malaria patients across Ghana in 2021.Malaria journal · 2025Article
- Field evaluation of the Bioline Malaria Ag P.f/Pan rapid diagnostic test: causes of microscopy discordance and performance in Uganda.Malaria journal · 2025Article
- Comparing approaches for chemoprevention for school-based malaria control in Malawi: an open label, randomized, controlled clinical trial.EClinicalMedicine · 2024Article
- High Frequency of Deletions in theTropical medicine and infectious disease · 2024Article
- Entomological survey of sibling species in the Anopheles funestus group in Tanzania confirms the role of Anopheles parensis as a secondary malaria vector.Parasites & vectors · 2024Article
- Deletions of Histidine-Rich Protein 2/3 Genes in Natural Plasmodium falciparum Populations from Cameroon and India: Role of Asymptomatic and Submicroscopic Infections.The American journal of tropical medicine and hygiene · 2024Article
- Expansion of artemisinin partial resistance mutations and lack of histidine rich protein-2 and -3 deletions in Plasmodium falciparum infections from Rukara, Rwanda.Malaria journal · 2024Article
- Rapid classification of epidemiologically relevant age categories of the malaria vector, Anopheles funestus.Parasites & vectors · 2024Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundMalaria rapid diagnostic tests (mRDTs) that target histidine-rich protein 2 (HRP2) are important tools for Plasmodium falciparum diagnosis. Parasites with pfhrp2/3 gene deletions threaten the use of these mRDTs and have been reported in Africa, Asia, and South America. We studied blood samples from 3 African countries to determine if these gene deletions were present.
methodsWe analyzed 911 dried blood spots from Ghana (n = 165), Tanzania (n = 176), and Uganda (n = 570). Plasmodium falciparum infection was confirmed by 18S rDNA polymerase chain reaction (PCR), and pfhrp2/3 genes were genotyped. True pfhrp2/3 gene deletions were confirmed if samples were (1) microscopy positive; (2) 18S rDNA PCR positive; (3) positive for merozoite surface protein genes by PCR or positive by loop-mediated isothermal amplification; or (4) quantitative PCR positive with >5 parasites/µL.
resultsNo pfhrp2/3 deletions were detected in samples from Ghana, but deletions were identified in Tanzania (3 pfhrp2; 2 pfhrp3) and Uganda (7 pfhrp2; 2 pfhrp3). Of the 10 samples with pfhrp2 deletions, 9 tested negative by HRP2-based mRDT.
conclusionsThe presence of pfhrp2/3 deletions in Tanzania and Uganda, along with reports of pfhrp2/3-deleted parasites in neighboring countries, reinforces the need for systematic surveillance to monitor the reliability of mRDTs in malaria-endemic countries.
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