Evidence map›Paper›PMID 28662054›Full record

ArticlePLoS neglected tropical diseases2017

First evidence of lymphatic filariasis transmission interruption in Cameroon: Progress towards elimination.

Hugues C Nana-Djeunga, Magellan Tchouakui, Guy R Njitchouang, Jules B Tchatchueng-Mbougua, Philippe Nwane, André Domche, Jean Bopda, Stève Mbickmen-Tchana, Julie Akame, Ann Tarini and 7 more

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
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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

17 authors.

Hugues C Nana-DjeungaCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Magellan TchouakuiCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Guy R NjitchouangCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Jules B Tchatchueng-MbouguaCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Philippe NwaneCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
André DomcheCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Jean BopdaCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Stève Mbickmen-TchanaCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.
Julie AkameHelen Keller International, Yaoundé, Cameroon.
Ann TariniHelen Keller International, Yaoundé, Cameroon.
Emilienne EpéeMinistry of Public Health, Yaoundé, Cameroon.
Benjamin D BiholongMinistry of Public Health, Yaoundé, Cameroon.
Yaobi ZhangHelen Keller International, Regional Office for Africa, Dakar, Senegal.
Jean J TougoueRTI International, Washington, D.C., United States of America.
Achille KaboreRTI International, Washington, D.C., United States of America.
Flobert NjiokouParasitology and Ecology Laboratory, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé 1, Yaoundé, Cameroon.
Joseph KamgnoCentre for Research on Filariasis and other Tropical Diseases, Yaoundé, Cameroon.ORCID http://orcid.org/0000-0003-1572-3490

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymphatic filariasis (LF) is among the 10 neglected tropical diseases targeted for control or elimination by 2020. For LF elimination, the World Health Organization (WHO) has proposed a comprehensive strategy including (i) interruption of LF transmission through large-scale annual treatment (or mass drug administration (MDA)) of all eligible individuals in endemic areas, and (ii) alleviation of LF-associated suffering through morbidity management and disability prevention. In Cameroon, once-yearly mass administration of ivermectin and albendazole has been implemented since 2008. The aim of this study was to assess progress towards the elimination goal, looking specifically at the impact of six rounds of MDA on LF transmission in northern Cameroon. METHODOLOGY: The study was conducted in the North and Far North Regions of Cameroon. Five health districts that successfully completed six rounds of MDA (defined as achieving a treatment coverage ≥ 65% each year) and reported no positive results for Wuchereria bancrofti microfilariaemia during routine surveys following the fifth MDA were grouped into three evaluation units (EU) according to WHO criteria. LF transmission was assessed through a community-based transmission assessment survey (TAS) using an immunochromatographic test (ICT) for the detection of circulating filarial antigen (CFA) in children aged 5-8 years old. PRINCIPAL

findingsA total of 5292 children (male/female ratio 1.04) aged 5-8 years old were examined in 97 communities. Positive CFA results were observed in 2, 8 and 11 cases, with a CFA prevalence of 0.13% (95% CI: 0.04-0.46) in EU#1, 0.57% (95% CI: 0.32-1.02) in EU#2, and 0.45% (95% CI: 0.23-0.89) in EU#3. CONCLUSION/SIGNIFICANCE: The positive CFA cases were below WHO defined critical cut-off thresholds for stopping treatment and suggest that transmission can no longer be sustained. Post-MDA surveillance activities should be organized to evaluate whether recrudescence can occur.

Indexed as

Disease EradicationHealth Services AdministrationAlbendazoleAnimalsAntigens, HelminthCameroonChildChild, PreschoolChromatography, AffinityCommunicable Disease ControlDisease Transmission, InfectiousElephantiasis, FilarialFemaleFilaricidesHumansIvermectinAlbendazoleAntigens, HelminthFilaricidesIvermectin

Identifiers

PMID28662054
PMCPMC5490934

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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.