Evidence map›Paper›PMID 27030247›Full record

ArticleParasites & vectors2016

Onchocerciasis, an undiagnosed disease in Mozambique: identifying research opportunities.

Emilia V Noormahomed, Kevan Akrami, Carmen Mascaró-Lazcano

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

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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

3 authors at 2 institutions in 3 countries.

Emilia V NoormahomedDepartment of Microbiology, Universidade Eduardo Mondlane, Maputo, Mozambique. enoormahomed@gmail.com.
Kevan AkramiDepartment of Medicine, University of California, San Diego, CA, USA.
Carmen Mascaró-LazcanoDepartment of Parasitology, Universidad de Granada, Granada, Spain.
University of California, San Diego · USUniversidad de Granada · ES

Funding

The Universidade Eduardo Mondlane/UCSD Medical Education PartnershipR24TW008908 · FIC · EDUARDO MONDLANE UNIVERSITY · PI NOORMAHOMED, EMILIA VIRGINIA · 2010 to 2015
$9.0M
Enhanced Advanced Biomedical Research Training for MozambiqueD43TW010135 · FIC · EDUARDO MONDLANE UNIVERSITY · PI NOORMAHOMED, EMILIA VIRGINIA · 2015 to 2019
$3.2M
FIC NIH HHS D43 TW010135FIC NIH HHS R24 TW008908FIC NIH HHS R24TW008908
6 · The paper itself

Abstract

backgroundThe objective of this paper is to summarise and critically review the available data about onchocerciasis in Mozambique, in order to report epidemiological and clinical aspects related to the disease and identify gaps in knowledge. The paper is intended to raise awareness of the existence and importance of this disease and to define research priorities.

methodsWe examined the scarce epidemiological data at our disposal: two diagnostic studies in 1997 and 1998 (first reports on the existence of onchocerciasis in Mozambique), and two Rapid Epidemiological Mapping of Onchocerciasis (REMO) surveys in 2001 and 2007. We examined differences in study designs and methodologies as well as the differing geographical locations to explain the divergence in findings among the studies.

resultsEvidence indicates that onchocerciasis is hypoendemic in Mozambique (with national and imported cases), but still largely remains an undiagnosed illness. There is no awareness of the clinical aspects of the disease and nor of the differential diagnosis with lepromatous leprosy and dermatitis caused by Scabies spp. The use of skin biopsy and a symptom screening questionnaire, combined with nodule rate, in the first two studies may have captured even atypical or subacute presentations. Both REMO surveys relied solely on nodule detection and in the six years between the two studies, the prevalence of nodules detected more than doubled.

conclusionsThe epidemiology and clinical aspects of the disease are unknown in Mozambique. Since the last REMO took place in 2007 and since the population is subject to large-scale movement and displacement, it is important to develop tools to identify and analyse populations that are at high risk for onchocerciasis. Cases of onchocerciasis may be misdiagnosed as leprosy or scabies that fail to improve despite being subjected to treatment against leprosy. Techniques to enable a differential diagnosis need to be established by training health professionals on the recognition of this undiagnosed disease. It is equally necessary to identify the blackfly vectors and where they breed.

Indexed as

Biomedical ResearchBiopsyDiagnosis, DifferentialLeprosyMozambiqueOnchocerciasisScabiesSkinLeprosyMozambiqueOnchocerca volvulusOnchocerciasisScabies

Identifiers

PMID27030247
PMCPMC4815156
OpenAlexW2335503791

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.