Evidence map›Paper›PMID 27622673›Full record

ArticlePLoS neglected tropical diseases2016

High Leptospira Diversity in Animals and Humans Complicates the Search for Common Reservoirs of Human Disease in Rural Ecuador.

Veronica Barragan, Jorge Chiriboga, Erin Miller, Sonora Olivas, Dawn Birdsell, Crystal Hepp, Heidie Hornstra, James M Schupp, Melba Morales, Manuel Gonzalez and 6 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
5.2field-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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  20. Molecular Characterization ofTropical medicine and infectious disease · 2024
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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

16 authors at 6 institutions in 3 countries.

Veronica BarraganThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.ORCID 0000-0002-2205-3010
Jorge ChiribogaInstituto de Microbiologia, Colegio de Ciencias Biologicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.
Erin MillerThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Sonora OlivasThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Dawn BirdsellThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Crystal HeppThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Heidie HornstraThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
James M SchuppMinisterio de Salud Pública, Quito, Ecuador.
Melba MoralesMinisterio de Salud Pública, Quito, Ecuador.
Manuel GonzalezInstituto Nacional de Salud Pública e Investigación, Guayaquil, Ecuador.
Soraya ReyesMinisterio de Salud Pública, Quito, Ecuador.
Carmen de la CruzInstituto Nacional de Salud Pública e Investigación, Guayaquil, Ecuador.
Paul KeimThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Rudy HartskeerlBiomedical Research, Royal Tropical Institute (KIT), Amsterdam, The Netherlands.
Gabriel TruebaInstituto de Microbiologia, Colegio de Ciencias Biologicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.
Talima PearsonThe Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, United States of America.
Northern Arizona University · USMinisterio de Salud Pública · ECInstituto Nacional de Investigación en Salud Pública · ECUniversidad San Francisco de Quito · ECRoyal Tropical Institute · NLTranslational Genomics Research Institute · US

Funding

Environmental sampling of Leptospira species to link to human leptospirosis casesR15AI101913 · NIAID · NORTHERN ARIZONA UNIVERSITY · PI PEARSON, TALIMA ROSS · 2013 to 2013
$436k
NIAID NIH HHS R15 AI101913
6 · The paper itself

Abstract

backgroundLeptospirosis is a zoonotic disease responsible for high morbidity around the world, especially in tropical and low income countries. Rats are thought to be the main vector of human leptospirosis in urban settings. However, differences between urban and low-income rural communities provide additional insights into the epidemiology of the disease. METHODOLOGY/PRINCIPAL

findingsOur study was conducted in two low-income rural communities near the coast of Ecuador. We detected and characterized infectious leptospira DNA in a wide variety of samples using new real time quantitative PCR assays and amplicon sequencing. We detected infectious leptospira in a high percentage of febrile patients (14.7%). In contrast to previous studies on leptospirosis risk factors, higher positivity was not found in rats (3.0%) but rather in cows (35.8%) and pigs (21.1%). Six leptospira species were identified (L. borgpetersenii, L kirschnerii, L santarosai, L. interrogans, L noguchii, and an intermediate species within the L. licerasiae and L. wolffii clade) and no significant differences in the species of leptospira present in each animal species was detected (χ2 = 9.89, adj.p-value = 0.27). CONCLUSIONS/SIGNIFICANCE: A large portion of the world's human population lives in low-income, rural communities, however, there is limited information about leptospirosis transmission dynamics in these settings. In these areas, exposure to peridomestic livestock is particularly common and high prevalence of infectious leptospira in cows and pigs suggest that they may be the most important reservoir for human transmission. Genotyping clinical samples show that multiple species of leptospira are involved in human disease. As these genotypes were also detected in samples from a variety of animals, genotype data must be used in conjunction with epidemiological data to provide evidence of transmission and the importance of different potential leptospirosis reservoirs.

Indexed as

AnimalsCattleDisease ReservoirsEcuadorGenotypeHumansLeptospiraLeptospirosisLivestockPhylogenyPovertyRatsRegression AnalysisRural PopulationSequence Analysis, DNASwine

Identifiers

PMID27622673
PMCPMC5021363
OpenAlexW2519154458

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.