Evidence map›Paper›PMID 27669170›Full record

ArticlePloS one

Spatial Variations in Dengue Transmission in Schools in Thailand.

Pitcha Ratanawong, Pattamaporn Kittayapong, Phanthip Olanratmanee, Annelies Wilder-Smith, Peter Byass, Yesim Tozan, Peter Dambach, Carlos Alberto Montenegro Quiñonez, Valérie R Louis

Open access · goldAbstract read
In one paragraph

Article in PloS one. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.5field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Epidemiological Changes in Acute Febrile Diseases after the COVID-19 Pandemic in Thailand.The American journal of tropical medicine and hygiene · 2025
    Article
  3. Article
  4. One health (Amsterdam, Netherlands) · 2023
    Review
  5. Article
  6. Frontiers in public health · 2022
    Article
  7. Article
  8. Entomovirological Surveillance in Schools: Are They a Source for Arboviral Diseases Transmission?International journal of environmental research and public health · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

9 authors at 6 institutions in 6 countries.

Pitcha RatanawongInstitute of Public Health, Heidelberg University Medical School, Heidelberg, Germany.
Pattamaporn KittayapongCenter of Excellence for Vectors and Vector-Borne Diseases, Faculty of Science, Mahidol University at Salaya, Nakhon Pathom, Thailand.
Phanthip OlanratmaneeFaculty of Science and Technology, Rajabhat Rajanagarindra University, Chachoengsao, Thailand.
Annelies Wilder-SmithEpidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå 90187, Sweden.
Peter ByassEpidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå 90187, Sweden.
Yesim TozanInstitute of Public Health, Heidelberg University Medical School, Heidelberg, Germany.
Peter DambachInstitute of Public Health, Heidelberg University Medical School, Heidelberg, Germany.
Carlos Alberto Montenegro QuiñonezInstitute of Public Health, Heidelberg University Medical School, Heidelberg, Germany.
Valérie R LouisInstitute of Public Health, Heidelberg University Medical School, Heidelberg, Germany.
Heidelberg University · DEMahidol University · THNanyang Technological University · SGNew York University · USRajabhat Rajanagarindra University · THUniversity of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDengue is an important neglected tropical disease, with more than half of the world's population living in dengue endemic areas. Good understanding of dengue transmission sites is a critical factor to implement effective vector control measures.

methodsA cohort of 1,811 students from 10 schools in rural, semi-rural and semi-urban Thailand participated in this study. Seroconversion data and location of participants' residences and schools were recorded to determine spatial patterns of dengue infections. Blood samples were taken to confirm dengue infections in participants at the beginning and the end of school term. Entomological factors included a survey of adult mosquito density using a portable vacuum aspirator during the school term and a follow up survey of breeding sites of Aedes vectors in schools after the school term. Clustering analyses were performed to detect spatial aggregation of dengue infections among participants.

resultsA total of 57 dengue seroconversions were detected among the 1,655 participants who provided paired blood samples. Of the 57 confirmed dengue infections, 23 (40.0%) occurred in students from 6 (6.8%) of the 88 classrooms in 10 schools. Dengue infections did not show significant clustering by residential location in the study area. During the school term, a total of 66 Aedes aegypti mosquitoes were identified from the 278 mosquitoes caught in 50 classrooms of the 10 schools. In a follow-up survey of breeding sites, 484 out of 2,399 water containers surveyed (20.2%) were identified as active mosquito breeding sites. DISCUSSION AND

conclusionOur findings suggest that dengue infections were clustered among schools and among classrooms within schools. The schools studied were found to contain a large number of different types of breeding sites. Aedes vector densities in schools were correlated with dengue infections and breeding sites in those schools. Given that only a small proportion of breeding sites in the schools were subjected to vector control measures (11%), this study emphasizes the urgent need to implement vector control strategies at schools, while maintaining efforts at the household level.

Identifiers

PMID27669170
PMCPMC5036884
OpenAlexW2527231394

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.