Evidence map›Paper›PMID 32168349›Full record

ArticlePLoS computational biology2020

Modelling the epidemiology of residual Plasmodium vivax malaria in a heterogeneous host population: A case study in the Amazon Basin.

Rodrigo M Corder, Marcelo U Ferreira, M Gabriela M Gomes

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 30 citations in OpenAlex.

  1. Population heterogeneity in Plasmodium vivax relapse risk.PLoS neglected tropical diseases · 2022
    Trial
  2. Article
  3. Frequent and genetically diverseResearch square · 2026
    Article
  4. Article
  5. Open forum infectious diseases · 2026
    Article
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  20. Monitoring Plasmodium vivax resistance to antimalarials: Persisting challenges and future directions.International journal for parasitology. Drugs and drug resistance · 2021
    Review
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

3 authors at 2 institutions in 3 countries.

Rodrigo M CorderDepartment of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.ORCID 0000-0002-8929-2200
Marcelo U FerreiraDepartment of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.ORCID 0000-0002-5293-9090
M Gabriela M GomesLiverpool School of Tropical Medicine, Liverpool, United Kingdom.
Universidade de São Paulo · BRUniversidade do Porto · PT

Funding

Sugar-feeding behavior of the malaria vector Nyssorhynchus darlingi and development of effective attractive toxic sugar baits (ATSB) to increase intervention success in PeruU19AI089681 · NIAID · YALE UNIVERSITY · PI GAZZINELLI, RICARDO TOSTES · 2010 to 2023
$20.1M
NIAID NIH HHS U19 AI089681
6 · The paper itself

Abstract

The overall malaria burden in the Americas has decreased dramatically over the past two decades, but residual transmission pockets persist across the Amazon Basin, where Plasmodium vivax is the predominant infecting species. Current elimination efforts require a better quantitative understanding of malaria transmission dynamics for planning, monitoring, and evaluating interventions at the community level. This can be achieved with mathematical models that properly account for risk heterogeneity in communities approaching elimination, where few individuals disproportionately contribute to overall malaria prevalence, morbidity, and onwards transmission. Here we analyse demographic information combined with routinely collected malaria morbidity data from the town of Mâncio Lima, the main urban transmission hotspot of Brazil. We estimate the proportion of high-risk subjects in the host population by fitting compartmental susceptible-infected-susceptible (SIS) transmission models simultaneously to age-stratified vivax malaria incidence densities and the frequency distribution of P. vivax malaria attacks experienced by each individual over 12 months. Simulations with the best-fitting SIS model indicate that 20% of the hosts contribute 86% of the overall vivax malaria burden. Despite the low overall force of infection typically found in the Amazon, about one order of magnitude lower than that in rural Africa, high-risk individuals gradually develop clinical immunity following repeated infections and eventually constitute a substantial infectious reservoir comprised of asymptomatic parasite carriers that is overlooked by routine surveillance but likely fuels onwards malaria transmission. High-risk individuals therefore represent a priority target for more intensive and effective interventions that may not be readily delivered to the entire community.

Indexed as

BrazilComputer SimulationFemaleHumansIncidenceMalariaMalaria, FalciparumMalaria, VivaxMaleModels, TheoreticalPlasmodium falciparumPlasmodium vivaxPrevalence

Identifiers

PMID32168349
PMCPMC7108741
OpenAlexW3012137268

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.