Evidence map›Paper›PMID 25860352›Full record

ArticlePLoS neglected tropical diseases2015

River boats contribute to the regional spread of the dengue vector Aedes aegypti in the Peruvian Amazon.

Sarah Anne Guagliardo, Amy C Morrison, Jose Luis Barboza, Edwin Requena, Helvio Astete, Gonzalo Vazquez-Prokopec, Uriel Kitron

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 50 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

7 authors at 5 institutions in 2 countries.

Sarah Anne GuagliardoDepartment of Environmental Sciences, Emory University, Atlanta, Georgia, United States of America.
Amy C MorrisonDepartment of Entomology, University of California, Davis, Davis, California, United States of America.
Jose Luis BarbozaUniversidad Nacional de la Amazonía Peruana, Iquitos, Peru.
Edwin RequenaUniversidad Nacional de la Amazonía Peruana, Iquitos, Peru.
Helvio AsteteU. S. Naval Medical Research Unit No.6 (NAMRU-6) Iquitos Laboratory, Iquitos, Peru.
Gonzalo Vazquez-ProkopecDepartment of Environmental Sciences, Emory University, Atlanta, Georgia, United States of America; Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America.
Uriel KitronDepartment of Environmental Sciences, Emory University, Atlanta, Georgia, United States of America; Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America.
National Institutes of Health · USUniversidad Nacional de la Amazonía Peruana · PEEmory University · USUnited States Naval Medical Research Unit SOUTH · PEUniversity of California, Davis · US

Funding

Measuring Entomological Risk for DengueR01AI069341 · NIAID · UNIVERSITY OF CALIFORNIA AT DAVIS · PI SCOTT, THOMAS WALLACE · 2006 to 2010
$2.3M
Training in Population Biology of Infectious DiseasesT32AI055404 · NIAID · EMORY UNIVERSITY · PI REAL, LESLIE A. · 2004 to 2013
$2.0M
NIAID NIH HHS R01 AI069341NIAID NIH HHS R01 AI069341-01NIAID NIH HHS T32 AI055404NIAID NIH HHS T32 AI55404-10
6 · The paper itself

Abstract

BACKGROUND AND

objectivesThe dramatic range expansion of the dengue vector Aedes aegypti is associated with various anthropogenic transport activities, but little is known about the underlying mechanisms driving this geographic expansion. We longitudinally characterized infestation of different vehicle types (cars, boats, etc.) to estimate the frequency and intensity of mosquito introductions into novel locations (propagule pressure).

methodsExhaustive adult and immature Ae. aegypti collections were performed on six different vehicle types at five ports and two bus/ taxi departure points in the Amazonian city of Iquitos, Peru during 2013. Aquatic vehicles included 32 large and 33 medium-sized barges, 53 water taxis, and 41 speed boats. Terrestrial vehicles sampled included 40 buses and 30 taxis traveling on the only highway in the region. Ae. aegypti adult infestation rates and immature indices were analyzed by vehicle type, location within vehicles, and sampling date.

resultsLarge barges (71.9% infested) and medium barges (39.4% infested) accounted for most of the infestations. Notably, buses had an overall infestation rate of 12.5%. On large barges, the greatest number of Ae. aegypti adults were found in October, whereas most immatures were found in February followed by October. The vast majority of larvae (85.9%) and pupae (76.7%) collected in large barges were produced in puddles formed in cargo holds.

conclusionsBecause larges barges provide suitable mosquito habitats (due to dark, damp cargo storage spaces and ample oviposition sites), we conclude that they likely serve as significant contributors to mosquitoes' propagule pressure across long distances throughout the Peruvian Amazon. This information can help anticipate vector population mixing and future range expansions of dengue and other viruses transmitted by Ae. aegypti.

Indexed as

Animal DistributionCitiesMotor VehiclesShipsAedesAnimalsDengueFemaleInsect VectorsLarvaLongitudinal StudiesPeruPupaRiversSeasons

Identifiers

PMID25860352
PMCPMC4393238
OpenAlexW2007014266

What OpenQuestion holds

Textmetadata
LicenceCC0
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.