Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil

ABSTRACT Background: The emergence of Trypanosoma cruzi infection via oral transmission has a habitual character in its primitive endemic cycle. Recent findings revealed the first death by oral transmission of T. cruzi in the state of Espírito Santo, Brazil, in 2012, which was recorded in the rura...

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Main Authors: Beathriz Giostri Pontes, Marieta Cristina Couto Kuster, Letícia Azeredo de Freitas, Wagner Miranda Barbosa, George Luiz Lins Machado-Coelho, Marcos Santos Zanini, Maria Terezinha Bahia, Fabiane Matos dos Santos
Format: Article
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT) 2022-12-01
Series:Revista da Sociedade Brasileira de Medicina Tropical
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100343&tlng=en
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author Beathriz Giostri Pontes
Marieta Cristina Couto Kuster
Letícia Azeredo de Freitas
Wagner Miranda Barbosa
George Luiz Lins Machado-Coelho
Marcos Santos Zanini
Maria Terezinha Bahia
Fabiane Matos dos Santos
author_facet Beathriz Giostri Pontes
Marieta Cristina Couto Kuster
Letícia Azeredo de Freitas
Wagner Miranda Barbosa
George Luiz Lins Machado-Coelho
Marcos Santos Zanini
Maria Terezinha Bahia
Fabiane Matos dos Santos
author_sort Beathriz Giostri Pontes
collection DOAJ
description ABSTRACT Background: The emergence of Trypanosoma cruzi infection via oral transmission has a habitual character in its primitive endemic cycle. Recent findings revealed the first death by oral transmission of T. cruzi in the state of Espírito Santo, Brazil, in 2012, which was recorded in the rural area of Guarapari. This study evaluated the characteristics related to the occurrence of natural T. cruzi infection among dogs from the rural areas of Alegre and Iconha, municipalities of Espírito Santo. Methods: Logistic regression analysis of factors contributing to serological detection of T. cruzi in dogs was performed in environments where Espírito Santo’s Department of Health Surveillance had previously notified triatomines positive for Trypanosoma spp. from 2014 to 2017. Results: A total of 36 dogs were analyzed, of which 10 (27.77%) tested positive, one was borderline (2.79%), and 25 tested negative (69.44%) for T. cruzi infection. São Caetano, a district from the Iconha municipality, presented a 25 times greater chance for the detection of positive tests (OR:25; 95% CI; 2.37->100). Dogs with updated mandatory vaccination presented with a lower risk of positive serodiagnosis (OR:0.12; 95% CI: 0.02-0.63). Conclusions: Our results highlight for the first time the occurrence of natural T. cruzi canine infection, detected in the municipality of Iconha, mainly among dogs with un-updated mandatory vaccines in the district of São Caetano.
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spelling doaj.art-7f262c97c10344d8802b88490b5202ec2022-12-22T03:02:56ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98492022-12-015510.1590/0037-8682-0712-2021Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, BrazilBeathriz Giostri Ponteshttps://orcid.org/0000-0003-1217-3745Marieta Cristina Couto Kusterhttps://orcid.org/0000-0002-4069-4559Letícia Azeredo de Freitashttps://orcid.org/0000-0002-3698-0149Wagner Miranda Barbosahttps://orcid.org/0000-0002-8712-983XGeorge Luiz Lins Machado-Coelhohttps://orcid.org/0000-0002-9806-9721Marcos Santos Zaninihttps://orcid.org/0000-0002-1523-0947Maria Terezinha Bahiahttps://orcid.org/0000-0003-1486-9455Fabiane Matos dos Santoshttps://orcid.org/0000-0002-2879-8259ABSTRACT Background: The emergence of Trypanosoma cruzi infection via oral transmission has a habitual character in its primitive endemic cycle. Recent findings revealed the first death by oral transmission of T. cruzi in the state of Espírito Santo, Brazil, in 2012, which was recorded in the rural area of Guarapari. This study evaluated the characteristics related to the occurrence of natural T. cruzi infection among dogs from the rural areas of Alegre and Iconha, municipalities of Espírito Santo. Methods: Logistic regression analysis of factors contributing to serological detection of T. cruzi in dogs was performed in environments where Espírito Santo’s Department of Health Surveillance had previously notified triatomines positive for Trypanosoma spp. from 2014 to 2017. Results: A total of 36 dogs were analyzed, of which 10 (27.77%) tested positive, one was borderline (2.79%), and 25 tested negative (69.44%) for T. cruzi infection. São Caetano, a district from the Iconha municipality, presented a 25 times greater chance for the detection of positive tests (OR:25; 95% CI; 2.37->100). Dogs with updated mandatory vaccination presented with a lower risk of positive serodiagnosis (OR:0.12; 95% CI: 0.02-0.63). Conclusions: Our results highlight for the first time the occurrence of natural T. cruzi canine infection, detected in the municipality of Iconha, mainly among dogs with un-updated mandatory vaccines in the district of São Caetano.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100343&tlng=enChagas diseaseTrypanosoma cruziCanis familiarisNatural infectionSerology.
spellingShingle Beathriz Giostri Pontes
Marieta Cristina Couto Kuster
Letícia Azeredo de Freitas
Wagner Miranda Barbosa
George Luiz Lins Machado-Coelho
Marcos Santos Zanini
Maria Terezinha Bahia
Fabiane Matos dos Santos
Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
Revista da Sociedade Brasileira de Medicina Tropical
Chagas disease
Trypanosoma cruzi
Canis familiaris
Natural infection
Serology.
title Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
title_full Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
title_fullStr Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
title_full_unstemmed Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
title_short Profile of natural Trypanosoma cruzi infection among dogs from rural areas of southern Espírito Santo, Brazil
title_sort profile of natural trypanosoma cruzi infection among dogs from rural areas of southern espirito santo brazil
topic Chagas disease
Trypanosoma cruzi
Canis familiaris
Natural infection
Serology.
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100343&tlng=en
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