Evidence map›Paper›PMID 33097045›Full record

ArticleMalaria journal2020

Genetic analysis reveals unique characteristics of Plasmodium falciparum parasite populations in Haiti.

Rachel F Daniels, Stella Chenet, Eric Rogier, Naomi Lucchi, Camelia Herman, Baby Pierre, Jean Frantz Lemoine, Jacques Boncy, Dyann F Wirth, Michelle A Chang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

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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

12 authors at 3 institutions in 2 countries.

Rachel F DanielsDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, 02115, USA.ORCID https://orcid.org/0000-0002-9712-4581
Stella ChenetDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, 02115, USA.
Eric RogierMalaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Naomi LucchiMalaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Camelia HermanMalaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Baby PierreMinistère de La Santé Publique Et de La Population (MSPP), Programme National de Contrôle de La Malaria, Port-au-Prince, Haiti.
Jean Frantz LemoineMinistère de La Santé Publique Et de La Population (MSPP), Programme National de Contrôle de La Malaria, Port-au-Prince, Haiti.
Jacques BoncyMinistère de La Santé Publique Et de La Population (MSPP), Programme National de Contrôle de La Malaria, Port-au-Prince, Haiti.
Dyann F WirthDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, 02115, USA.
Michelle A ChangMalaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Venkatachalam UdhayakumarMalaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Sarah K VolkmanDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, 02115, USA. svolkman@hsph.harvard.edu.
Centers for Disease Control and Prevention · USBroad Institute · USHarvard University · US

Funding

Gates Foundation INV-008799
6 · The paper itself

Abstract

backgroundWith increasing interest in eliminating malaria from the Caribbean region, Haiti is one of the two countries on the island of Hispaniola with continued malaria transmission. While the Haitian population remains at risk for malaria, there are a limited number of cases annually, making conventional epidemiological measures such as case incidence and prevalence of potentially limited value for fine-scale resolution of transmission patterns and trends. In this context, genetic signatures may be useful for the identification and characterization of the Plasmodium falciparum parasite population in order to identify foci of transmission, detect outbreaks, and track parasite movement to potentially inform malaria control and elimination strategies.

methodsThis study evaluated the genetic signals based on analysis of 21 single-nucleotide polymorphisms (SNPs) from 462 monogenomic (single-genome) P. falciparum DNA samples extracted from dried blood spots collected from malaria-positive patients reporting to health facilities in three southwestern Haitian departments (Nippes, Grand'Anse, and Sud) in 2016.

resultsAssessment of the parasite genetic relatedness revealed evidence of clonal expansion within Nippes and the exchange of parasite lineages between Nippes, Sud, and Grand'Anse. Furthermore, 437 of the 462 samples shared high levels of genetic similarity-at least 20 of 21 SNPS-with at least one other sample in the dataset.

conclusionsThese results revealed patterns of relatedness suggestive of the repeated recombination of a limited number of founding parasite types without significant outcrossing. These genetic signals offer clues to the underlying relatedness of parasite populations and may be useful for the identification of the foci of transmission and tracking of parasite movement in Haiti for malaria elimination.

Indexed as

Polymorphism, Single NucleotideDNA, ProtozoanHaitiPlasmodium falciparumDNA, ProtozoanGenetic analysisHaitiHispaniolaMalaria eliminationPlasmodium falciparumPopulation genetics

Identifiers

PMID33097045
PMCPMC7583211
OpenAlexW3094493661

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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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.