Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years.
Trachoma is the leading infectious cause of blindness in the world and is associated with precarious living conditions in developing countries. The aim of the present study was to evaluate the prevalence of trachoma in three municipalities of the Marajó Archipelago, located in the state of Pará, Bra...
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ftdoajarticles:oai:doaj.org/article:a20c358610e44589bf8e8b0de5e00367 2023-05-15T15:11:04+02:00 Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. Joana Favacho Antonio José Ledo Alves da Cunha Samara Tatielle Monteiro Gomes Felipe Bonfim Freitas Maria Alice Freitas Queiroz Antonio Carlos Rosário Vallinoto Ricardo Ishak Marluísa de Oliveira Guimarães Ishak 2018-02-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0006282 https://doaj.org/article/a20c358610e44589bf8e8b0de5e00367 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5831641?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0006282 https://doaj.org/article/a20c358610e44589bf8e8b0de5e00367 PLoS Neglected Tropical Diseases, Vol 12, Iss 2, p e0006282 (2018) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2018 ftdoajarticles https://doi.org/10.1371/journal.pntd.0006282 2022-12-31T00:08:13Z Trachoma is the leading infectious cause of blindness in the world and is associated with precarious living conditions in developing countries. The aim of the present study was to evaluate the prevalence of trachoma in three municipalities of the Marajó Archipelago, located in the state of Pará, Brazil. In 2008, 2,054 schoolchildren from the public primary school system of the urban area of the region and their communicants were clinically examined; in 2016, 1,502 schoolchildren were examined. The positive cases seen during the clinical evaluation were confirmed by direct immunofluorescence (DIF) laboratory tests. The presence of antibodies against the genus Chlamydia was evaluated by indirect immunofluorescence (IIF), and the serotypes were determined by microimmunofluorescence (MIF). In 2008, the prevalence of trachoma among schoolchildren was 3.4% (69 cases) and it was more frequent in children between six and nine years of age and in females; among the communicants, a prevalence of 16.5% was observed. In 2016, three cases of trachoma were diagnosed (prevalence of 0.2%), found only in the municipality of Soure. The results of the present study showed that in 2008, trachoma had a low prevalence (3.4%) among schoolchildren in the urban area of Marajó Archipelago; eight years after the first evaluation and the introduction of control and prevention measures (SAFE strategy), there was a drastic reduction in the number of cases (0.2%), demonstrating the need for constant monitoring and effective measures for the elimination of trachoma. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLOS Neglected Tropical Diseases 12 2 e0006282 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Joana Favacho Antonio José Ledo Alves da Cunha Samara Tatielle Monteiro Gomes Felipe Bonfim Freitas Maria Alice Freitas Queiroz Antonio Carlos Rosário Vallinoto Ricardo Ishak Marluísa de Oliveira Guimarães Ishak Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Trachoma is the leading infectious cause of blindness in the world and is associated with precarious living conditions in developing countries. The aim of the present study was to evaluate the prevalence of trachoma in three municipalities of the Marajó Archipelago, located in the state of Pará, Brazil. In 2008, 2,054 schoolchildren from the public primary school system of the urban area of the region and their communicants were clinically examined; in 2016, 1,502 schoolchildren were examined. The positive cases seen during the clinical evaluation were confirmed by direct immunofluorescence (DIF) laboratory tests. The presence of antibodies against the genus Chlamydia was evaluated by indirect immunofluorescence (IIF), and the serotypes were determined by microimmunofluorescence (MIF). In 2008, the prevalence of trachoma among schoolchildren was 3.4% (69 cases) and it was more frequent in children between six and nine years of age and in females; among the communicants, a prevalence of 16.5% was observed. In 2016, three cases of trachoma were diagnosed (prevalence of 0.2%), found only in the municipality of Soure. The results of the present study showed that in 2008, trachoma had a low prevalence (3.4%) among schoolchildren in the urban area of Marajó Archipelago; eight years after the first evaluation and the introduction of control and prevention measures (SAFE strategy), there was a drastic reduction in the number of cases (0.2%), demonstrating the need for constant monitoring and effective measures for the elimination of trachoma. |
format |
Article in Journal/Newspaper |
author |
Joana Favacho Antonio José Ledo Alves da Cunha Samara Tatielle Monteiro Gomes Felipe Bonfim Freitas Maria Alice Freitas Queiroz Antonio Carlos Rosário Vallinoto Ricardo Ishak Marluísa de Oliveira Guimarães Ishak |
author_facet |
Joana Favacho Antonio José Ledo Alves da Cunha Samara Tatielle Monteiro Gomes Felipe Bonfim Freitas Maria Alice Freitas Queiroz Antonio Carlos Rosário Vallinoto Ricardo Ishak Marluísa de Oliveira Guimarães Ishak |
author_sort |
Joana Favacho |
title |
Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
title_short |
Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
title_full |
Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
title_fullStr |
Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
title_full_unstemmed |
Prevalence of trachoma in school children in the Marajó Archipelago, Brazilian Amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
title_sort |
prevalence of trachoma in school children in the marajó archipelago, brazilian amazon, and the impact of the introduction of educational and preventive measures on the disease over eight years. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pntd.0006282 https://doaj.org/article/a20c358610e44589bf8e8b0de5e00367 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 12, Iss 2, p e0006282 (2018) |
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http://europepmc.org/articles/PMC5831641?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0006282 https://doaj.org/article/a20c358610e44589bf8e8b0de5e00367 |
op_doi |
https://doi.org/10.1371/journal.pntd.0006282 |
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PLOS Neglected Tropical Diseases |
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12 |
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