Evidence map›Paper›PMID 35945552›Full record

ArticleInfectious diseases of poverty2022

Re-emerging threat of Trypanosoma cruzi vector transmission in El Salvador, update from 2018 to 2020.

Marvin Stanley Rodríguez, Yuko Nitahara, Michelle Cornejo, Kevin Siliezar, Rafael Grande, Ana González, Kotaro Tasaki, Yu Nakagama, Yu Michimuko, Yoko Onizuka and 7 more

Open access · goldAbstract read
In one paragraph

Article in Infectious diseases of poverty, 2022. 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
0.8field-weighted citation impact, top 29% 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.

  1. Natural Reservoir ofJMA journal · 2025
    Article
  2. In Vitro Antiprotozoal Activity ofPlants (Basel, Switzerland) · 2024
    Article
  3. Article
  4. Article
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

17 authors at 6 institutions in 2 countries.

Marvin Stanley Rodríguez *Centro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Yuko Nitahara *Department of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan.
Michelle CornejoCentro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Kevin SiliezarCentro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Rafael GrandeCentro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Ana GonzálezCentro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Kotaro TasakiNagasaki University School of Medicine, Nagasaki, Japan.
Yu NakagamaDepartment of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan.
Yu MichimukoDepartment of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan.
Yoko OnizukaGraduate School of Health Sciences, Gunma University, 3-39-22 Showamachi, Maebashi, Gunma, 371-8514, Japan.
Junko Nakajima-ShimadaGraduate School of Health Sciences, Gunma University, 3-39-22 Showamachi, Maebashi, Gunma, 371-8514, Japan.
José Eduardo RomeroMinisterio de Salud, San Salvador, El Salvador.
José Ricardo PalaciosCentro de Investigación y Desarrollo en Salud, Universidad de El Salvador, San Salvador, El Salvador.
Carmen Elena AriasCentro Nacional de Investigaciones Científicas de El Salvador, San Salvador, El Salvador.
William MejíaMinisterio de Educación, Ciencia y Tecnología, San Salvador, El Salvador.
Yasutoshi KidoDepartment of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan. kidoyasu@omu.ac.jp.ORCID http://orcid.org/0000-0003-3615-2631
Ricardo Cardona AlvarengaMinisterio de Educación, Ciencia y Tecnología, San Salvador, El Salvador.
University of El Salvador · SVOsaka Metropolitan University · JPGunma University · JPMinisterio de Salud · SVNagasaki University · JPOsaka City University · JP

Funding

Science and Technology Research Partnership for Sustainable Development JP 21jm0110016
6 · The paper itself

Abstract

backgroundSince the late twentieth century, Chagas disease gained global attention to suppress the vector burden as a main control strategy in endemic countries. In Central America, multi-national initiative successfully achieved significant reduction in the estimated disease prevalence as well as elimination of the region's principal vector species at the time in 2012. While the last decade has witnessed significant changes in ecosystem-such as urbanization and replacement of the main vector species-that can possibly affect the vector's habitation and residual transmission, the up-to-date vector burden in the region has not been evaluated thoroughly due to the cessation of active vector surveillance. The aim of this study was to update the risk of vector-borne Trypanosoma cruzi infection in El Salvador, the top Chagas disease-endemic country in Central America.

methodsA nationwide vector survey was conducted in the domestic environment of El Salvador from September 2018 to November 2020. The selection of the houses for inspection was based on expert purposeful sampling. Infection for T. cruzi was examined by microscopic observation of the insects' feces, followed by a species confirmation using PCR. The data were analyzed using R software version 4.1.3. Proportion estimates with 95% confidence intervals were inferred using the Jeffrey's method provided under the epiR package.

resultsA total of 1529 Triatoma dimidiata was captured from 107 houses (infestation rate, 34.4%; 107/311) in all the fourteen departments of the country visited within the period; prevalence of T. cruzi infection was as high as 10% (153/1529). In the country, domestic T. dimidiata infestation was distributed ubiquitously, while T. cruzi infection rates varied across the departments. Five out of fourteen departments showed higher infection rates than the average, suggesting sporadic high-risk areas in the country.

conclusionsOur comprehensive study revealed substantial T. cruzi infection of T. dimidiata across the country, indicating potential active transmission of the disease. Therefore, strengthened surveillance for both vector and human infection is required to truly eliminate the risk of T. cruzi transmission in Central America.

Indexed as

Chagas DiseaseTriatomaTrypanosoma cruziAnimalsEcosystemEl SalvadorHumansInsect VectorsChagas diseaseTriatoma dimidiataTriatomineTrypanosoma cruziVector transmission

Identifiers

PMID35945552
PMCPMC9361614
OpenAlexW4291019421

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.