Evidence map›Paper›PMID 26503275›Full record

ArticleThe American journal of tropical medicine and hygiene2015

One Hundred Years After Its Discovery in Guatemala by Rodolfo Robles, Onchocerca volvulus Transmission Has Been Eliminated from the Central Endemic Zone.

Frank Richards, Nidia Rizzo, Carlos Enrique Diaz Espinoza, Zoraida Morales Monroy, Carol Guillermina Crovella Valdez, Renata Mendizabal de Cabrera, Oscar de Leon, Guillermo Zea-Flores, Mauricio Sauerbrey, Alba Lucia Morales and 7 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Article
  6. Article
  7. Identification and Characterization ofPathogens (Basel, Switzerland) · 2024
    Article
  8. A neglected among the neglected: a review of cutaneous leishmaniasis in Guatemala.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Entomological Assessment ofPathogens (Basel, Switzerland) · 2020
    Article
  14. Article
  15. Onchocerciasis Elimination: Progress and Challenges.Research and reports in tropical medicine · 2020
    Review
  16. Operational Performance of theThe American journal of tropical medicine and hygiene · 2018
    Article
  17. Article
  18. Article
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  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 1 institution in 1 country.

Frank RichardsRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama frank.richards@emory.edu.
Nidia RizzoRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Carlos Enrique Diaz EspinozaRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Zoraida Morales MonroyRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Carol Guillermina Crovella ValdezRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Renata Mendizabal de CabreraRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Oscar de LeonRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Guillermo Zea-FloresRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Mauricio SauerbreyRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Alba Lucia MoralesRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Dalila RiosRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Thomas R UnnaschRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Hassan K HassanRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Robert KleinRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Mark EberhardRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Ed CuppRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Alfredo DomínguezRiver Blindness Elimination Program, The Carter Center, Atlanta, Georgia; Centro de Estudios en Salud of the Universidad del Valle de Guatemala (UVG), Guatemala City, Guatemala; Ministerio de Salud Pública y Asistencia Social, Guatemala City, Guatemala; Onchocerciasis Elimination Program for the Americas (OEPA), The Carter Center, Guatemala City, Guatemala; Global Health Infectious Disease Program, Department of Global Health, University of South Florida, Tampa, Florida; Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama.
Centers for Disease Control and Prevention · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report the elimination of Onchocerca volvulus transmission from the Central Endemic Zone (CEZ) of onchocerciasis in Guatemala, the largest focus of this disease in the Americas and the first to be discovered in this hemisphere by Rodolfo Robles Valverde in 1915. Mass drug administration (MDA) with ivermectin was launched in 1988, with semiannual MDA coverage reaching at least 85% of the eligible population in > 95% of treatment rounds during the 12-year period, 2000-2011. Serial parasitological testing to monitor MDA impact in sentinel villages showed a decrease in microfilaria skin prevalence from 70% to 0%, and polymerase chain reaction (PCR)-based entomological assessments of the principal vector Simulium ochraceum s.l. showed transmission interruption by 2007. These assessments, together with a 2010 serological survey in children 9-69 months of age that showed Ov16 IgG4 antibody prevalence to be < 0.1%, meeting World Health Organization (WHO) guidelines for stopping MDA, and treatment was halted after 2011. After 3 years an entomological assessment showed no evidence of vector infection or recrudescence of transmission. In 2015, 100 years after the discovery of its presence, the Ministry of Health of Guatemala declared onchocerciasis transmission as having been eliminated from the CEZ.

Indexed as

Disease EradicationOnchocerca volvulusAnimalsChild, PreschoolEyeFemaleFilaricidesGuatemalaHumansInsect ControlInsect VectorsIvermectinMaleOnchocerciasisSimuliidaeSkinFilaricidesIvermectin

Identifiers

PMID26503275
PMCPMC4674249
OpenAlexW1836744549

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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.