Evidence map›Paper›PMID 34464421›Full record

ArticlePloS one2021

Impact of the dog population and household environment for the maintenance of natural foci of Leishmania infantum transmission to human and animal hosts in endemic areas for visceral leishmaniasis in Sao Paulo state, Brazil.

Patricia Sayuri Silvestre Matsumoto, Roberto Mitsuyoshi Hiramoto, Virgínia Bodelão Richini Pereira, Valéria Medina Camprigher, Helena Hilomi Taniguchi, José Eduardo de Raeffray Barbosa, Luiz Ricardo Paes de Barros Cortez, Elivelton da Silva Fonseca, Raul Borges Guimarães, José Eduardo Tolezano

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Visceral Leishmaniasis in Southern Brazil: an overview of current epidemiology.Revista da Sociedade Brasileira de Medicina Tropical · 2026
    Review
  3. Article
  4. Review
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  6. Article
  7. Performance of Extracellular Vesicles FromJournal of parasitology research · 2025
    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 3 institutions in 1 country.

Patricia Sayuri Silvestre MatsumotoParasitology and Mycology Center, Adolfo Lutz Institute (IAL), Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0001-7205-7557
Roberto Mitsuyoshi HiramotoParasitology and Mycology Center, Adolfo Lutz Institute (IAL), Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0002-7404-1505
Virgínia Bodelão Richini PereiraAdolfo Lutz Institute, Regional Laboratories Center II Bauru, Bauru, Sao Paulo, Brazil.
Valéria Medina CamprigherCenter for Zoonoses Control of Bauru, Health Secretariat of Bauru, Bauru, Brazil.
Helena Hilomi TaniguchiParasitology and Mycology Center, Adolfo Lutz Institute (IAL), Sao Paulo, Sao Paulo, Brazil.
José Eduardo de Raeffray BarbosaBioterium nucleos, Adolfo Lutz Institute (IAL), Sao Paulo, Sao Paulo, Brazil.
Luiz Ricardo Paes de Barros CortezCenter for Zoonoses Control of Bauru, Health Secretariat of Bauru, Bauru, Brazil.
Elivelton da Silva FonsecaInstitute of Geography, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
Raul Borges GuimarãesDepartment of Geography, Sao Paulo State University/Faculty of Sciences and Technology (FCT/UNESP), Presidente Prudente, Sao Paulo, Brazil.
José Eduardo TolezanoParasitology and Mycology Center, Adolfo Lutz Institute (IAL), Sao Paulo, Sao Paulo, Brazil.
Instituto Adolfo Lutz · BRUniversidade Estadual Paulista (Unesp) · BRUniversidade Federal de Uberlândia · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

When it comes to visceral leishmaniasis (VL) in Brazil, one of the main targets of public health policies of surveillance is the control of domestic canine reservoirs of Leishmania infantum. This paper aims to evaluate the effect of the dog population and household environment for the maintenance of natural foci in the transmission to human and animal hosts in an endemic city for VL, Bauru, in Brazil. We collected 6,578 blood samples of dogs living in 3,916 households from Nov.2019 to Mar.2020 and applied geospatial models to predict the disease risk based on the canine population. We used Kernel density estimation, cluster analysis, geostatistics, and Generalized Additive Models (GAM). To validate our models, we used cross-validation and created a receiver operating characteristic (ROC) curve. We found an overall canine VL (CVL) seroprevalence of 5.6% for the sampled dogs, while for the households, the positivity rate was 8.7%. Odds ratios (OR) for CVL increased progressively according to the number of canines for >2 dogs (OR 2.70); households that already had CVL in the past increased the chances for CVL currently (OR 2.73); and the cases of CVL increase the chances for human VL cases (OR 1.16). Our models were statistically significant and demonstrated a spatial association between canine and human disease cases, mainly in VL foci that remain endemic. Although the Kernel density ratio map had the best performance (AUC = 82), all the models showed high risk in the city's northwest area. Canine population dynamics must be considered in public policies, and geospatial methods may help target priority areas and planning VL surveillance in low and middle-income countries.

Indexed as

AnimalsBrazilDog DiseasesDogsFamily CharacteristicsHumansLeishmaniasis, VisceralLogistic ModelsRisk FactorsSpatial AnalysisUrban PopulationZoonoses

Identifiers

PMID34464421
PMCPMC8407543
OpenAlexW3196429043

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.