Evidence map›Paper›PMID 30802249›Full record

SynthesisPLoS neglected tropical diseases2019

Epidemiological situation of yaws in the Americas: A systematic review in the context of a regional elimination goal.

Ana Clara Zoni, Martha Idalí Saboyá-Díaz, Luis Gerardo Castellanos, Rubén Santiago Nicholls, Vendula Blaya-Novakova

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

  1. Integrated serosurveillance of multiple communicable diseases in the hinterland of Guyana.Revista panamericana de salud publica = Pan American journal of public health · 2026
    Article
  2. Article
  3. 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

5 authors at 1 institution in 1 country.

Ana Clara ZoniIndependent consultant, Madrid, Spain.ORCID 0000-0001-9013-6419
Martha Idalí Saboyá-DíazCommunicable Diseases and Environmental Determinants of Health Department, Pan-American Health Organization/World Health Organization, Washington, DC, United States of the America.
Luis Gerardo CastellanosCommunicable Diseases and Environmental Determinants of Health Department, Pan-American Health Organization/World Health Organization, Washington, DC, United States of the America.
Rubén Santiago NichollsCommunicable Diseases and Environmental Determinants of Health Department, Pan-American Health Organization/World Health Organization, Washington, DC, United States of the America.
Vendula Blaya-NovakovaIndependent consultant, Madrid, Spain.
World Health Organization Regional Office for the Americas · US

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundYaws is targeted for eradication by 2020 in the WHA66.12 resolution of the World Health Assembly. The objective of this study was to describe the occurrence of yaws in the Americas and to contribute to the compilation of evidence based on published data to undertake the certification of yaws eradication. METHODOLOGY: A systematic review of the epidemiological situation of yaws in the Americas was performed by searching in MEDLINE, Embase, LILACS, SCOPUS, Web of Science, DARE and Cochrane Database of Systematic Reviews. Experts on the topic were consulted, and institutional WHO/PAHO library databases were reviewed. PRINCIPAL

findingsSeventy-five full-text articles published between 1839 and 2012 met the inclusion criteria. Haiti and Jamaica were the two countries with the highest number of papers (14.7% and 12.0%, respectively). Three-quarters of the studies were conducted before 1970. Thirty-three countries reported yaws case count or prevalence data. The largest foci in the history were described in Brazil and Haiti. The most recent cases reported were recorded in eight countries: Suriname, Guyana, Colombia, Haiti, Martinique, Dominica, Trinidad and Tobago, and Brazil. Gaps in information and heterogeneity were detected in the methodologies used and outcome reporting, making cross-national and chronological comparisons difficult.

conclusionsThe lack of recent yaws publications may reflect, in the best-case scenario, the interruption of yaws transmission. It should be possible to reach the eradication goal in the region of the Americas, but it is necessary to collect more information. We suggest updating the epidemiological status of yaws, especially in two countries that need to assess ongoing transmission. Twenty-four countries need to demonstrate the interruption of transmission and declare its status of yaws endemicity, and sixteen countries should declare if they are yaws-free. It is necessary to formally verify the achievement of this goal in Ecuador.

Indexed as

Global HealthAmericasBrazilColombiaDisease EradicationEcuadorHaitiHumansNeglected DiseasesWorld Health OrganizationYaws

Identifiers

PMID30802249
PMCPMC6405159
OpenAlexW2915339413

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.