Evidence map›Paper›PMID 33712017›Full record

ArticleMalaria journal2021

Rapid diagnostic test negative Plasmodium falciparum malaria in a traveller returning from Ethiopia.

Stefan Schlabe, Ingrid Reiter-Owona, Tamara Nordmann, Ramona Dolscheid-Pommerich, Egbert Tannich, Achim Hoerauf, Jürgen Rockstroh

Open access · goldAbstract readCase Reports
In one paragraph

Article in Malaria journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Electroencephalogram Features Distinguish Cases of Cerebral Malaria Among Malawian Children With Fever and Coma.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025
    Article
  5. High Prevalence ofThe Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2025
    Review
  6. Article
  7. Article
  8. Article
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

7 authors at 2 institutions in 1 country.

Stefan SchlabeDepartment of Internal Medicine I, University Hospital of Bonn, Venusberg Campus 1, Building 26, 53127, Bonn, Germany. Stefan.Schlabe@ukbonn.de.ORCID http://orcid.org/0000-0002-7797-3674
Ingrid Reiter-OwonaInstitute for Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital of Bonn, Bonn, Germany.
Tamara NordmannDepartment of Internal Medicine I, University Hospital of Bonn, Venusberg Campus 1, Building 26, 53127, Bonn, Germany.
Ramona Dolscheid-PommerichInstitute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany.
Egbert TannichNational Reference Centre for Tropical Pathogens, Bernhard Nocht-Institute for Tropical Medicine (BNITM), Hamburg, Germany.
Achim HoeraufInstitute for Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital of Bonn, Bonn, Germany.
Jürgen RockstrohDepartment of Internal Medicine I, University Hospital of Bonn, Venusberg Campus 1, Building 26, 53127, Bonn, Germany.
University Hospital Bonn · DEBernhard Nocht Institute for Tropical Medicine · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlasmodium falciparum strains with mutations/deletions of the genes encoding the histidine-rich proteins 2/3 (pfhrp2/3) have emerged during the last 10 years leading to false-negative results in HRP2-based rapid diagnostic tests (RDTs). This can lead to unrecognized infections in individuals and to setbacks in malaria control in endemic countries where RDTs are the backbone of malaria diagnostics and control. CASE DESCRIPTION: Here the detection of a pfhrp2/3-negative P. falciparum infection acquired in Ethiopia by a 63-year old female traveller is presented. After onset of symptoms during travel, she was first tested negative for malaria, most probably by RDT, at a local hospital in Harar, Ethiopia. Falciparum malaria was finally diagnosed microscopically upon her return to Germany, over 4 weeks after infection. At a parasite density of approximately 5387 parasites/µl, two different high-quality RDTs: Palutop + 4 OPTIMA, NADAL

conclusionHRP2-negative P. falciparum strains may not be recognized by the presently available HRP2-based RDTs. When malaria is suspected, confirmation by microscopy and/or qPCR is necessary in order to detect falciparum malaria, which requires immediate treatment. This case of imported P. falciparum, non-reactive to HRP2-based RDT, possibly underlines the necessity for standardized, nationwide investigations in Ethiopia and should alert clinicians from non-endemic countries to the possibility of false-negative RDT results which may increase in returning travellers with potentially life-threatening infections.

Indexed as

Diagnostic Tests, RoutineEthiopiaFemaleGermanyHumansMalaria, FalciparumMiddle AgedPlasmodium falciparumTravelEthiopiaHRP2MalariaRDT

Identifiers

PMID33712017
PMCPMC7952815
OpenAlexW3133606316

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.