Evidence map›Paper›PMID 35388127›Full record

ArticleScientific reports2022

Deletions of the Plasmodium falciparum histidine-rich protein 2/3 genes are common in field isolates from north-eastern Tanzania.

Robert D Kaaya, Reginald A Kavishe, Filemon F Tenu, Johnson J Matowo, Franklin W Mosha, Chris Drakeley, Colin J Sutherland, Khalid B Beshir

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
6.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  14. Low frequency ofFrontiers in epidemiology · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Robert D KaayaKilimanjaro Christian Medical University College, Moshi, Tanzania. robertkaaya@yahoo.com.
Reginald A KavisheKilimanjaro Christian Medical University College, Moshi, Tanzania.
Filemon F TenuPan-African Malaria Vector Research Consortium, Moshi, Tanzania.
Johnson J MatowoKilimanjaro Christian Medical University College, Moshi, Tanzania.
Franklin W MoshaKilimanjaro Christian Medical University College, Moshi, Tanzania.
Chris DrakeleyDepartment of Infection Biology, Faculty of Infectious & Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.
Colin J SutherlandDepartment of Infection Biology, Faculty of Infectious & Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.
Khalid B BeshirDepartment of Infection Biology, Faculty of Infectious & Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.
Kilimanjaro Christian Medical Centre · TZLondon School of Hygiene & Tropical Medicine · GBAfrican Malaria Network Trust · TZ

Funding

Medical Research Council MR/T016124/1Wellcome TrustWellcome Trust 107742/Z/15/Z
6 · The paper itself

Abstract

Plasmodium falciparum parasites lacking histidine-rich protein 2 and 3 (pfhrp2/3) genes have been reported in several parts of the world. These deletions are known to compromise the effectiveness of HRP2-based malaria rapid diagnostic tests (HRP2-RDT). The National Malaria Control Programme (NMCP) in Tanzania adopted HRP2-RDTs as a routine tool for malaria diagnosis in 2009 replacing microscopy in many Health facilities. We investigated pfhrp2/3 deletions in 122 samples from two areas with diverse malaria transmission intensities in Northeastern Tanzania. Pfhrp2 deletion was confirmed in 1.6% of samples while pfhrp3 deletion was confirmed in 50% of samples. We did not find parasites with both pfhrp2 and pfhrp3 deletions among our samples. Results from this study highlight the need for systematic surveillance of pfhrp2/3 deletions in Tanzania to understand their prevalence and determine their impact on the performance of mRDT.

Indexed as

MalariaMalaria, FalciparumAntigens, ProtozoanGene DeletionHistidineHumansPlasmodium falciparumProtozoan ProteinsTanzaniaAntigens, ProtozoanHistidineProtozoan Proteins

Identifiers

PMID35388127
PMCPMC8987040
OpenAlexW4226113109

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.