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Frequency and molecular characterisation of Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, and Entamoeba hartmanni in the context of water scarcity in northeastern Brazil

Overview of attention for article published in Memórias do Instituto Oswaldo Cruz, February 2016
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Title
Frequency and molecular characterisation of Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, and Entamoeba hartmanni in the context of water scarcity in northeastern Brazil
Published in
Memórias do Instituto Oswaldo Cruz, February 2016
DOI 10.1590/0074-02760150383
Pubmed ID
Authors

Deiviane Aparecida Calegar, Beatriz Coronato Nunes, Kerla Joeline Lima Monteiro, Jéssica Pereira dos Santos, Helena Keiko Toma, Tais Ferreira Gomes, Marli Maria Lima, Márcio Neves Bóia, Filipe Anibal Carvalho-Costa

Abstract

This study aimed to estimate the frequency, associated factors, and molecular characterisation of Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, andEntamoeba hartmanni infections. We performed a survey (n = 213 subjects) to obtain parasitological, sanitation, and sociodemographic data. Faecal samples were processed through flotation and centrifugation methods.E. histolytica, E. dispar, E. moshkovskii, and E. hartmanni were identified by nested-polymerase chain reaction (PCR). The overall prevalence of infection was 22/213 (10.3%). The infection rate among subjects who drink rainwater collected from roofs in tanks was higher than the rate in subjects who drink desalinated water pumped from wells; similarly, the infection rate among subjects who practice open defecation was significantly higher than that of subjects with latrines. Out of the 22 samples positive for morphologically indistinguishableEntamoeba species, the differentiation by PCR was successful for 21. The species distribution was as follows: 57.1% to E. dispar, 23.8% to E. histolytica, 14.3% toE. histolytica and E. dispar, and 4.8% E. dispar and E. hartmanni. These data suggest a high prevalence of asymptomatic infection by the group of morphologically indistinguishable Entamoeba histolytica/dispar/moshkovskiicomplex and E. hartmanni species. In this context of water scarcity, the sanitary and socioenvironmental characteristics of the region appear to favour transmission.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 88 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 88 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 14 16%
Student > Master 14 16%
Researcher 13 15%
Student > Ph. D. Student 6 7%
Other 6 7%
Other 15 17%
Unknown 20 23%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 11 13%
Agricultural and Biological Sciences 10 11%
Immunology and Microbiology 8 9%
Medicine and Dentistry 8 9%
Nursing and Health Professions 6 7%
Other 19 22%
Unknown 26 30%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 August 2016.
All research outputs
#11,127,488
of 12,511,869 outputs
Outputs from Memórias do Instituto Oswaldo Cruz
#783
of 862 outputs
Outputs of similar age
#220,006
of 262,940 outputs
Outputs of similar age from Memórias do Instituto Oswaldo Cruz
#8
of 9 outputs
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So far Altmetric has tracked 862 research outputs from this source. They receive a mean Attention Score of 3.2. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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