Evidence map›Paper›PMID 30646934›Full record

ArticleParasites & vectors2019

Entomological assessment of the transmission following recrudescence of onchocerciasis in the Comoé Valley, Burkina Faso.

Lassane Koala, Achille S Nikièma, Alain B Paré, François Drabo, Laurent D Toé, Adrien M G Belem, Daniel A Boakye, Soungalo Traoré, Roch K Dabiré

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.0field-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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Spatial and seasonal dynamics ofParasite epidemiology and control · 2026
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  13. AssessingPathogens (Basel, Switzerland) · 2023
    Article
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  15. Serological Evaluation of Onchocerciasis and Lymphatic Filariasis Elimination in the Bakoye and Falémé Foci, Mali.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
    Article
  16. Article
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  18. Entomological Assessment ofPathogens (Basel, Switzerland) · 2020
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  20. Review
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 3 institutions in 1 country.

Lassane KoalaMinistère de l'Enseignement Supérieur, de la Recherche Scientifique et de l'Innovation, Institut de Recherche en Sciences de la Santé (IRSS), Direction Régionale de l'Ouest, BP 545, Bobo Dioulasso 01, Burkina Faso. koalalassane@gmail.com.ORCID http://orcid.org/0000-0002-6868-9516
Achille S NikièmaMinistère de l'Enseignement Supérieur, de la Recherche Scientifique et de l'Innovation, Institut de Recherche en Sciences de la Santé (IRSS), Direction Régionale de l'Ouest, BP 545, Bobo Dioulasso 01, Burkina Faso.
Alain B ParéMinistère de la Santé, Direction Générale de la Santé, BP 7003, Ouagadougou 01, Burkina Faso.
François DraboMinistère de la Santé, Direction Générale de la Santé, BP 7003, Ouagadougou 01, Burkina Faso.
Laurent D ToéWHO/AFRO/ESPEN Laboratory, Ouagadougou, Burkina Faso.
Adrien M G BelemUniversité Nazi Boni de Bobo-Dioulasso 01, BP 1091, Bobo-Dioulasso, Burkina Faso.
Daniel A BoakyeWHO/AFRO/ESPEN Laboratory, Ouagadougou, Burkina Faso.
Soungalo Traoré, BP 2938, Ouagadougou 01, Burkina Faso.
Roch K DabiréMinistère de l'Enseignement Supérieur, de la Recherche Scientifique et de l'Innovation, Institut de Recherche en Sciences de la Santé (IRSS), Direction Régionale de l'Ouest, BP 545, Bobo Dioulasso 01, Burkina Faso.
Institut de Recherche en Sciences de la Santé · BFNazi Boni University · BFUniversité Joseph Ki-Zerbo · BF

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOnchocerciasis, or river blindness, is a dermal filariasis caused by infection with the nematode parasite Onchocerca volvulus, transmitted to humans through the bites of blackflies of the genus Simulium. Despite the decade-long West African Regional Programme for the Elimination of Onchocerciasis, involving the mass administration of ivermectin to populations in endemic areas, recrudescence has occurred. An example is in the Cascades Region of south-west Burkina Faso where the resumption of transmission had resulted in infection prevalences of up to 70% in some villages. In 2011, a strategy for community-directed distribution of ivermectin (CDTI) was set up to respond to this worrying re-emergence. Here, we report on a study of Onchocerca spp. transmission in the affected area carried out from January to December 2012. Every month, host-seeking adult females of the S. damnosum complex were collected at sites on the River Comoé near the four villages (Bodadiougou, Bolibana, Badara Karaboro and Badara Dogossè) that had recorded the highest prevalences in 2010. Collected blackflies were dissected and infective larvae were identified using the O-150 PCR method.

resultsA total of 9114 S. damnosum (s.l.) adult females were collected, of which 5142 were parous (56.4%) and 78 (1.51%) were infective carrying a total of 137 infective larvae. The annual transmission potential (ATP) was calculated as 0, 30, 255 and 771 infective larvae/man/year in Badara Dogossè, Bolibana, Badara Karaboro and Bodadiougou, respectively. Transmission levels in the latter two are of particular concern as they were higher than 100 infective larvae/person/year, the designated minimum threshold required for elimination of severe pathology, including damage to vision.

conclusionsThese results confirm that recrudescence of onchocerciasis has occurred, and that transmission of O. volvulus was active at sites on the Comoé River in the Cascades region in 2012. In accordance with WHO recommendations, CDTI should be continued and the situation in the Cascades region should be closely monitored if further spread of this outbreak is to be avoided.

Indexed as

Disease Transmission, InfectiousAnimalsBurkina FasoCommunicable Disease ControlHumansInsecticidesInsect VectorsIvermectinLarvaOnchocerca volvulusOnchocerciasisPrevalenceRecurrenceSimuliidaeInsecticidesIvermectinBurkina FasoIvermectinO-150 PCROnchocerciasisRecrudescenceSimuliumTransmission

Identifiers

PMID30646934
PMCPMC6332526
OpenAlexW2937975053

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.