Evidence map›Paper›PMID 36698132›Full record

ArticleParasites & vectors2023

Plasmodium malariae contributes to high levels of malaria transmission in a forest-savannah transition area in Cameroon.

Daniel Nguiffo-Nguete, Francis Nongley Nkemngo, Cyrille Ndo, Jean-Pierre Agbor, Stravensky T Boussougou-Sambe, Luc Salako Djogbénou, Francine Ntoumi, Ayôla A Adegnika, Steffen Borrmann, Charles S Wondji

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
9.9field-weighted citation impact, top 1% 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

20 citing papers in PubMed, 34 citations in OpenAlex.

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  15. Genetic diversity ofFrontiers in cellular and infection microbiology · 2024
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  19. Plasmodium vivax in Sub-Saharan Africa: An Advancing Threat to Malaria Elimination?The American journal of tropical medicine and hygiene · 2023
    Article
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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

10 authors at 6 institutions in 7 countries.

Daniel Nguiffo-NgueteCentre for Research in Infectious Diseases (CRID), Yaoundé, Cameroon. daniel.nguiffo@crid-cam.net.
Francis Nongley NkemngoCentre for Research in Infectious Diseases (CRID), Yaoundé, Cameroon.
Cyrille NdoCentre for Research in Infectious Diseases (CRID), Yaoundé, Cameroon.
Jean-Pierre AgborCentre for Research in Infectious Diseases (CRID), Yaoundé, Cameroon.
Stravensky T Boussougou-SambeCentre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.
Luc Salako DjogbénouInstitut Régional de Santé Publique, Ouidah, Bénin.
Francine NtoumiFondation Congolaise Pour La Recherche Médicale, Brazzaville, Republic of the Congo.
Ayôla A AdegnikaCentre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.
Steffen BorrmannCentre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.
Charles S WondjiCentre for Research in Infectious Diseases (CRID), Yaoundé, Cameroon.
Ministry of Scientific Research and Innovation · CMUniversity of Tübingen · DEFondation Congolaise Pour La Recherche Médicale · CGPan African Institute for Development · CMUniversité d'Abomey-Calavi · BJUniversity of Douala · CM

Funding

German Research funding DFG BO 2494/3-1
6 · The paper itself

Abstract

backgroundMalaria control efforts are highly skewed towards Plasmodium falciparum while overlooking other Plasmodium species such as P. malariae. A better understanding of the role of Plasmodium species other than P. falciparum is needed to strengthen malaria elimination initiatives. The aim of the present study was to elucidate the contribution of P. malariae to malaria transmission in Cameroon.

methodsThe study was conducted in the Ngatti Health District, a forest-savannah transition area in the Adamawa Region, Cameroon. A total of 497 individuals aged from 1 to 85 years were diagnosed with malaria in November 2020 using a rapid diagnostic test (RDT) and microscopy. Adult mosquitoes were collected between September 2019 and March 2020 by indoor aspiration and identified morphologically and molecularly. The infection status of Plasmodium spp. was also determined by quantitative PCR, and dried blood spots were collected from 156 participants with the aim to detect different Plasmodium species by nested PCR.

resultsThe overall Plasmodium prevalence was 50.3%, 51.8% and 64.7%, as detected by microscopy, the RDT and PCR, respectively. Based on the PCR results, P. falciparum was the most prevalent species (43%); followed by co-infections P. falciparum/P. malariae (17%), P. falciparum/P. ovale (1.3%), P. falciparum/P. ovale/P. malariae (1.3%); and then by P. malariae mono-infection (2.5%). The same trend was observed using microscopy, with 35% of participants infected with P. falciparum, 11% co-infected with P. falciparum/P. malariae and 4% infected with P. malariae. The prevalence and parasite density of malaria infection varied significantly with age group (P < 0.05), with the highest prevalence rate observed in children aged 6-10 years (P = 0.0001) while the density of Plasmodium infection increased significantly in children aged < 5 years compared to the other age groups (P = 10

conclusionThe results of this study reveal the significant contribution of P. malariae, in addition to P. falciparum, to the high malaria transmission rate in this region. These findings highlight the need to deploy initiatives to also tackle this Plasmodium species to eliminate malaria in the region.

Indexed as

AnophelesMalariaMalaria, FalciparumAdolescentAdultAgedAged, 80 and overAnimalsCameroonChildChild, PreschoolForestsHumansInfantMiddle AgedPlasmodium falciparumMalariaP. falciparumP. malariaeP. ovaleReservoir

Identifiers

PMID36698132
PMCPMC9875470
OpenAlexW4317936651

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.