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PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL

There is a clear need to perform epidemiological studies to find the true prevalence of Entamoeba histolytica around the world. The evaluation of this prevalence has been hindered by the existence of two different species which are morphologically identical, but genetically different, namely E. hist...

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Autores principales: Silva, Maria Teresa Nascimento, Santana, José Valfrido, Bragagnoli, Gérson, Marinho, Alexandre Magno da Nóbrega, Malagueño, Elizabeth
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Instituto de Medicina Tropical 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4172120/
https://www.ncbi.nlm.nih.gov/pubmed/25229229
http://dx.doi.org/10.1590/S0036-46652014000500015
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author Silva, Maria Teresa Nascimento
Santana, José Valfrido
Bragagnoli, Gérson
Marinho, Alexandre Magno da Nóbrega
Malagueño, Elizabeth
author_facet Silva, Maria Teresa Nascimento
Santana, José Valfrido
Bragagnoli, Gérson
Marinho, Alexandre Magno da Nóbrega
Malagueño, Elizabeth
author_sort Silva, Maria Teresa Nascimento
collection PubMed
description There is a clear need to perform epidemiological studies to find the true prevalence of Entamoeba histolytica around the world. The evaluation of this prevalence has been hindered by the existence of two different species which are morphologically identical, but genetically different, namely E. histolytica, which causes amebiasis, and E. dispar, which is non-pathogenic. In Brazil, the E. dispar has been detected in communities in the Southeastern (SE) and Northeastern (NE) regions with poor sanitation. However, individuals infected with E. histolytica have been identified in other regions. There is an absence of reports on the prevalence of these parasites in the state of Paraíba, which also has areas with poor sanitary conditions where a high prevalence of the E. histolytica/E. dispar complex has been detected in children from urban slums. The present study evaluated the prevalence of E. histolytica and E. dispar in 1,195 asymptomatic children between two and 10 years of age, living in a sprawling urban slum in Campina Grande, in the state of Paraíba, in Northeastern Brazil. These children were examined and their feces samples were analyzed microscopically. A total of 553 children tested positive for the E. histolytica/E. dispar complex, and 456 of the positive samples were tested with the E. histolytica II® ELISA kit. All 456 samples were negative for the presence of the adhesin E. histolytica specific antigen. The evidence suggests that in this community E. histolytica is absent and E. dispar is the dominant species.
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spelling pubmed-41721202014-10-08 PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL Silva, Maria Teresa Nascimento Santana, José Valfrido Bragagnoli, Gérson Marinho, Alexandre Magno da Nóbrega Malagueño, Elizabeth Rev Inst Med Trop Sao Paulo Brief Communication There is a clear need to perform epidemiological studies to find the true prevalence of Entamoeba histolytica around the world. The evaluation of this prevalence has been hindered by the existence of two different species which are morphologically identical, but genetically different, namely E. histolytica, which causes amebiasis, and E. dispar, which is non-pathogenic. In Brazil, the E. dispar has been detected in communities in the Southeastern (SE) and Northeastern (NE) regions with poor sanitation. However, individuals infected with E. histolytica have been identified in other regions. There is an absence of reports on the prevalence of these parasites in the state of Paraíba, which also has areas with poor sanitary conditions where a high prevalence of the E. histolytica/E. dispar complex has been detected in children from urban slums. The present study evaluated the prevalence of E. histolytica and E. dispar in 1,195 asymptomatic children between two and 10 years of age, living in a sprawling urban slum in Campina Grande, in the state of Paraíba, in Northeastern Brazil. These children were examined and their feces samples were analyzed microscopically. A total of 553 children tested positive for the E. histolytica/E. dispar complex, and 456 of the positive samples were tested with the E. histolytica II® ELISA kit. All 456 samples were negative for the presence of the adhesin E. histolytica specific antigen. The evidence suggests that in this community E. histolytica is absent and E. dispar is the dominant species. Instituto de Medicina Tropical 2014 /pmc/articles/PMC4172120/ /pubmed/25229229 http://dx.doi.org/10.1590/S0036-46652014000500015 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Brief Communication
Silva, Maria Teresa Nascimento
Santana, José Valfrido
Bragagnoli, Gérson
Marinho, Alexandre Magno da Nóbrega
Malagueño, Elizabeth
PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title_full PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title_fullStr PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title_full_unstemmed PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title_short PREVALENCE OF Entamoeba histolytica/Entamoeba dispar IN THE CITY OF CAMPINA GRANDE, IN NORTHEASTERN BRAZIL
title_sort prevalence of entamoeba histolytica/entamoeba dispar in the city of campina grande, in northeastern brazil
topic Brief Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4172120/
https://www.ncbi.nlm.nih.gov/pubmed/25229229
http://dx.doi.org/10.1590/S0036-46652014000500015
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