Evidence map›Paper›PMID 32228675›Full record

ArticleParasites & vectors2020

Anopheline bionomics, insecticide resistance and transnational dispersion in the context of controlling a possible recurrence of malaria transmission in Jaffna city in northern Sri Lanka.

Sinnathamby N Surendran, Tibutius T P Jayadas, Annathurai Tharsan, Vaikunthavasan Thiruchenthooran, Sharanga Santhirasegaram, Kokila Sivabalakrishnan, Selvarajah Raveendran, Ranjan Ramasamy

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Pathogens spread by high-flying wind-borne mosquitoes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Taxonomy, Bio-Ecology and Insecticide Resistance of Anopheline Vectors of Malaria in Sri Lanka.International journal of environmental research and public health · 2024
    Review
  5. Article
  6. Article
  7. Article
  8. Detection and population genetic analysis of kdr L1014F variant in eastern Ethiopian Anopheles stephensi.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2022
    Article
  9. Article
  10. 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

8 authors at 2 institutions in 2 countries.

Sinnathamby N SurendranDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka. noble@univ.jfn.ac.lk.ORCID http://orcid.org/0000-0002-7861-2037
Tibutius T P JayadasDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka.
Annathurai TharsanDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka.
Vaikunthavasan ThiruchenthooranDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka.
Sharanga SanthirasegaramDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka.
Kokila SivabalakrishnanDepartment of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka.
Selvarajah RaveendranDepartment of Geography, Faculty of Arts, University of Jaffna, Jaffna, Sri Lanka.
Ranjan RamasamyID-FISH Technology, Milpitas, CA, USA. rjr200911@yahoo.com.
University of Jaffna · LKID-FISH Technology (United States) · US

Funding

National Science Foundation RG/2011/BT/04
6 · The paper itself

Abstract

backgroundMalaria was eliminated from Sri Lanka in 2013. However, the influx of infected travelers and the presence of potent anopheline vectors can re-initiate transmission in Jaffna city, which is separated by a narrow strait from the malaria-endemic Indian state of Tamil Nadu.

methodsAnopheline larvae were collected from different habitats in Jaffna city and the susceptibility of emergent adults to DDT, malathion and deltamethrin investigated.

resultsAnopheline larvae were found in wells, surface-exposed drains, ponds, water puddles and water storage tanks, with many containing polluted, alkaline and brackish water. Anopheles culicifacies, An. subpictus, An. stephensi and An. varuna were identified in the collections. Adults of the four anopheline species were resistant to DDT. Anopheles subpictus and An. stephensi were resistant while An. culicifacies and An. varuna were possibly resistant to deltamethrin. Anopheles stephensi was resistant, An. subpictus possibly resistant while An. varuna and An. culicifacies were susceptible to malathion. DNA sequencing showed a L1014F (TTA to TTC) mutation in the IIS6 transmembrane segment of the voltage-gated sodium channel protein in deltamethrin-resistant An. subpictus-a mutation previously observed in India but not Sri Lanka.

conclusionAnopheles subpictus in Jaffna, like An. stephensi, may have recently originated in coastal Tamil Nadu. Besides infected overseas travelers, wind- and boat-borne carriage of Plasmodium-infected anophelines across the Palk Strait can potentially reintroduce malaria transmission to Jaffna city. Adaptation to diverse larval habitats and resistance to common insecticides in anophelines are identified as potential problems for vector control should this happen.

Indexed as

AnimalsAnophelesDDTEcologyIndiaInsecticide ResistanceInsecticidesLarvaMalariaMalathionMosquito VectorsNitrilesPyrethrinsRecurrenceSequence AnalysisSequence Analysis, DNADDTdecamethrinInsecticidesMalathionNitrilesPyrethrinsAnopheles malaria vectorsInsecticide resistanceJaffnakdr mutationLarval habitatsMalaria controlMosquito range expansionSri LankaTamil NaduTransnational mosquito migration

Identifiers

PMID32228675
PMCPMC7106892
OpenAlexW3014025183

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.