Evidence map›Paper›PMID 32766832›Full record

ArticleThe Journal of infectious diseases2021

Under the Radar: Epidemiology of Plasmodium ovale in the Democratic Republic of the Congo.

Cedar L Mitchell, Nicholas F Brazeau, Corinna Keeler, Melchior Kashamuka Mwandagalirwa, Antoinette K Tshefu, Jonathan J Juliano, Steven R Meshnick

Open access · greenAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Trial
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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

7 authors at 2 institutions in 2 countries.

Cedar L MitchellDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Nicholas F BrazeauDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Corinna KeelerDepartment of Geography, University of North Carolina, Chapel Hill, North Carolina, USA.
Melchior Kashamuka MwandagalirwaDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Antoinette K TshefuKinshasa School of Public Health, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo.
Jonathan J JulianoDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Steven R MeshnickDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
University of North Carolina at Chapel Hill · USUniversity of Kinshasa · CD

Funding

Biostatstics for Research in Environmental HealthT32ES007018 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Stephanie Engel, Rebecca Fry · 1985 to 2026
$31.3M
POPULATION STUDIEST32HD007168 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ELIZABETH A FRANKENBERG · 1985 to 2026
$13.8M
Epidemiological and Spatial Models of Malaria TransmissionR01AI107949 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MESHNICK, STEVEN RICHARD · 2014 to 2018
$2.5M
Collaborative Research: Impacts of the African Origin of Plasmodium vivax on Contemporary Parasite PopulationsR01TW010870 · FIC · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JULIANO, JONATHAN J · 2017 to 2021
$2.4M
Mentoring in Translational Malaria GenomicsK24AI134990 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Jonathan J Juliano · 2018 to 2026
$1.6M
Identifying the Distribution, Origin, and Threat of Plasmodium vivax in the DRCF30AI143172 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BRAZEAU, NICHOLAS FORD · 2019 to 2022
$171k
FIC NIH HHS R01 TW010870NIAID NIH HHS F30 AI143172NIAID NIH HHS K24 AI134990NIAID NIH HHS R01 AI107949NICHD NIH HHS T32 HD007168NIEHS NIH HHS T32 ES007018
6 · The paper itself

Abstract

backgroundPlasmodium ovale is an understudied malaria species prevalent throughout much of sub-Saharan Africa. Little is known about the distribution of ovale malaria and risk factors for infection in areas of high malaria endemicity.

methodsUsing the 2013 Democratic Republic of the Congo (DRC) Demographic and Health Survey, we conducted a risk factor analysis for P. ovale infections. We evaluated geographic clustering of infections and speciated to P. ovale curtisi and P. ovale wallikeri through deep sequencing.

resultsOf 18 149 adults tested, we detected 143 prevalent P. ovale infections (prevalence estimate 0.8%; 95% confidence interval [CI], .59%-.98%). Prevalence ratios (PR) for significant risk factors were: male sex PR = 2.12 (95% CI, 1.38-3.26), coprevalent P. falciparum PR = 3.52 (95% CI, 2.06-5.99), and rural residence PR = 2.19 (95% CI, 1.31-3.66). P. ovale was broadly distributed throughout the DRC; an elevated cluster of infections was detected in the south-central region. Speciation revealed P. ovale curtisi and P. ovale wallikeri circulating throughout the country.

conclusionsP. ovale persists broadly in the DRC, a high malaria burden country. For successful elimination of all malaria species, P. ovale needs to be on the radar of malaria control programs.

Indexed as

MalariaPlasmodium ovaleAdultDemocratic Republic of the CongoHumansPrevalenceamplicon sequencingepidemiologynonfalciparum malariaPlasmodium ovale

Identifiers

PMID32766832
PMCPMC8006425
OpenAlexW3047707869

What OpenQuestion holds

Textmetadata
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.