Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21808 |
Resumo: | Leishmaniosis are zoonoses that present several clinical manifestations in humans and have dogs as their main reservoir in the urban environment. Visceral leishmaniasis (VL) is the most severe form of the parasitosis and has been increasing in Brazil, despite the actions of public health agencies. Until 2002, the State of Rio Grande do Sul (RS) was considered free of human and canine leishmaniasis. The first human case of cutaneous leishmaniasis in RS was recorded in 2003. In 2009, the first autochthonous cases of human VL and canine visceral leishmaniasis (CVL) were confirmed in São Borja, RS, and the occurrence of the insect vector was recorded for the first time in the state. In 2010, the first confirmed case of CVL was reported and seropositive dogs were identified in the city of Porto Alegre, RS. Given the importance of this zoonosis and the difficulties of a reliable diagnosis in dogs, this study aimed to identify epidemiological aspects of CVL in dogs in an area of Porto Alegre where cases of the disease have been reported. A total of 300 blood samples were collected from dogs in this area, which were then tested by the methods of RT-DPP® and ELISA for diagnosis of Leishmania infantum. An epidemiological questionnaire was completed by dog owners, containing aspects related to care of the animals, characteristics of their environment, and their living conditions. We observed that 83% (250/300) of the studied dogs were of mixed breed, 58% (175/300) were female, 78% (238/300) slept outdoors, and 61% (183/300) shared their living quarters with other species. Clinically, we observed that 90% (270/300) of the animals were infested by ectoparasites, 70% (210/300) had dermatopathies, 24% (72/300) presented weight loss and anorexia, and 22% (65/300) had ocular disorders. The results of the two serological tests were 100% concordant for the three seropositive samples (1%), and the remaining 297 (99%) were negative for both tests. We conclude that despite the low prevalence of L. infantum seropositive dogs, conditions in the region are favorable for CVL transmission, creating a risk of VL for the human population in the city of Porto Alegre. |
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Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, BrazilSoroepidemiologia de Leishmania infantum em cães de uma área com ocorrência de casos no município de Porto Alegre, Rio Grande do SulVisceral LeishmaniasisDogsSerologic DiagnosisPorto Alegre.Leishmaniose VisceralCãesDiagnóstico SorológicoPorto Alegre.Leishmaniosis are zoonoses that present several clinical manifestations in humans and have dogs as their main reservoir in the urban environment. Visceral leishmaniasis (VL) is the most severe form of the parasitosis and has been increasing in Brazil, despite the actions of public health agencies. Until 2002, the State of Rio Grande do Sul (RS) was considered free of human and canine leishmaniasis. The first human case of cutaneous leishmaniasis in RS was recorded in 2003. In 2009, the first autochthonous cases of human VL and canine visceral leishmaniasis (CVL) were confirmed in São Borja, RS, and the occurrence of the insect vector was recorded for the first time in the state. In 2010, the first confirmed case of CVL was reported and seropositive dogs were identified in the city of Porto Alegre, RS. Given the importance of this zoonosis and the difficulties of a reliable diagnosis in dogs, this study aimed to identify epidemiological aspects of CVL in dogs in an area of Porto Alegre where cases of the disease have been reported. A total of 300 blood samples were collected from dogs in this area, which were then tested by the methods of RT-DPP® and ELISA for diagnosis of Leishmania infantum. An epidemiological questionnaire was completed by dog owners, containing aspects related to care of the animals, characteristics of their environment, and their living conditions. We observed that 83% (250/300) of the studied dogs were of mixed breed, 58% (175/300) were female, 78% (238/300) slept outdoors, and 61% (183/300) shared their living quarters with other species. Clinically, we observed that 90% (270/300) of the animals were infested by ectoparasites, 70% (210/300) had dermatopathies, 24% (72/300) presented weight loss and anorexia, and 22% (65/300) had ocular disorders. The results of the two serological tests were 100% concordant for the three seropositive samples (1%), and the remaining 297 (99%) were negative for both tests. We conclude that despite the low prevalence of L. infantum seropositive dogs, conditions in the region are favorable for CVL transmission, creating a risk of VL for the human population in the city of Porto Alegre.As leishmanioses são zoonoses de caráter incurável que apresentam diversas manifestações clínicas no homem e tem o cão como seu principal reservatório no ambiente urbano. A Leishmaniose visceral (LV) é a forma mais grave da parasitose e sua ocorrência tem aumentado no Brasil, apesar das ações dos órgãos de saúde pública. Até o do ano de 2002, o Estado do Rio Grande do Sul era área indene para as leishmanioses humana e canina. Em 2003 foi registrado o primeiro caso humano da forma tegumentar e em 2009, foram confirmados os primeiros casos autóctones humanos de LV e caninos de Leishmaniose visceral canina (LVC) no município de São Borja/RS e registrada, pela primeira vez, a ocorrência do inseto vetor no estado. Em 2010, foi notificado o primeiro caso confirmado de LVC e identificados cães sororreagentes em Porto Alegre/RS. Tendo em vista a importância desta zoonose e as dificuldades de um diagnóstico confiável em cães, o presente estudo objetivou identificar aspectos epidemiológicos da LVC em cães em uma região com registros de casos no município de Porto Alegre/RS. Coletaram-se 300 amostras de sangue de cães desta região as quais foram testas pelos métodos TR-DPP® e ELISA para diagnóstico de Leishmania chagasi. Um questionário epidemiológico foi aplicado durante entrevista com os tutores, contendo aspectos relativos à criação dos animais e fatores ambientais. Verificou-se que 83% (250/300) dos cães não tinham raça definida, 58% (175/300) eram fêmeas, 78% (238/300) dormiam ao ar livre e 61% (183/300) conviviam com outras espécies animais. Clinicamente, observou-se que 90% (270/300) dos animais apresentavam infestação por ectoparasitos, 70% (210/300) apresentavam alterações dermatológicas, 24% (72/300) emagrecimento e anorexia e 22% (65/300) alterações oculares. Os resultados dos testes sorológicos foram 100% concordantes uma vez que as mesmas três amostras (1%) apresentaram reação positiva e as demais 297 (99%) foram negativas em ambos os métodos diagnósticos. Concluiu-se que, apesar da baixa prevalência de cães soropositivos para L. chagasi, existem condições de transmissão de LVC, com risco de LV para a população humana no município de Porto Alegre.UEL2016-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2180810.5433/1679-0359.2016v37n6p4077Semina: Ciências Agrárias; Vol. 37 No. 6 (2016); 4077-4084Semina: Ciências Agrárias; v. 37 n. 6 (2016); 4077-40841679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21808/20098http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessTeixeira, Mariana CaetanoStobbe, Neusa SaltielSchmidt, VerônicaLima, Valéria Marçal Felix deTartarotti, Ana LuisaRamos, Raquel RochaAraujo, Flávio Antônio Pacheco de2022-11-29T15:53:23Zoai:ojs.pkp.sfu.ca:article/21808Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T15:53:23Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil Soroepidemiologia de Leishmania infantum em cães de uma área com ocorrência de casos no município de Porto Alegre, Rio Grande do Sul |
title |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
spellingShingle |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil Teixeira, Mariana Caetano Visceral Leishmaniasis Dogs Serologic Diagnosis Porto Alegre. Leishmaniose Visceral Cães Diagnóstico Sorológico Porto Alegre. |
title_short |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
title_full |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
title_fullStr |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
title_full_unstemmed |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
title_sort |
Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil |
author |
Teixeira, Mariana Caetano |
author_facet |
Teixeira, Mariana Caetano Stobbe, Neusa Saltiel Schmidt, Verônica Lima, Valéria Marçal Felix de Tartarotti, Ana Luisa Ramos, Raquel Rocha Araujo, Flávio Antônio Pacheco de |
author_role |
author |
author2 |
Stobbe, Neusa Saltiel Schmidt, Verônica Lima, Valéria Marçal Felix de Tartarotti, Ana Luisa Ramos, Raquel Rocha Araujo, Flávio Antônio Pacheco de |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Teixeira, Mariana Caetano Stobbe, Neusa Saltiel Schmidt, Verônica Lima, Valéria Marçal Felix de Tartarotti, Ana Luisa Ramos, Raquel Rocha Araujo, Flávio Antônio Pacheco de |
dc.subject.por.fl_str_mv |
Visceral Leishmaniasis Dogs Serologic Diagnosis Porto Alegre. Leishmaniose Visceral Cães Diagnóstico Sorológico Porto Alegre. |
topic |
Visceral Leishmaniasis Dogs Serologic Diagnosis Porto Alegre. Leishmaniose Visceral Cães Diagnóstico Sorológico Porto Alegre. |
description |
Leishmaniosis are zoonoses that present several clinical manifestations in humans and have dogs as their main reservoir in the urban environment. Visceral leishmaniasis (VL) is the most severe form of the parasitosis and has been increasing in Brazil, despite the actions of public health agencies. Until 2002, the State of Rio Grande do Sul (RS) was considered free of human and canine leishmaniasis. The first human case of cutaneous leishmaniasis in RS was recorded in 2003. In 2009, the first autochthonous cases of human VL and canine visceral leishmaniasis (CVL) were confirmed in São Borja, RS, and the occurrence of the insect vector was recorded for the first time in the state. In 2010, the first confirmed case of CVL was reported and seropositive dogs were identified in the city of Porto Alegre, RS. Given the importance of this zoonosis and the difficulties of a reliable diagnosis in dogs, this study aimed to identify epidemiological aspects of CVL in dogs in an area of Porto Alegre where cases of the disease have been reported. A total of 300 blood samples were collected from dogs in this area, which were then tested by the methods of RT-DPP® and ELISA for diagnosis of Leishmania infantum. An epidemiological questionnaire was completed by dog owners, containing aspects related to care of the animals, characteristics of their environment, and their living conditions. We observed that 83% (250/300) of the studied dogs were of mixed breed, 58% (175/300) were female, 78% (238/300) slept outdoors, and 61% (183/300) shared their living quarters with other species. Clinically, we observed that 90% (270/300) of the animals were infested by ectoparasites, 70% (210/300) had dermatopathies, 24% (72/300) presented weight loss and anorexia, and 22% (65/300) had ocular disorders. The results of the two serological tests were 100% concordant for the three seropositive samples (1%), and the remaining 297 (99%) were negative for both tests. We conclude that despite the low prevalence of L. infantum seropositive dogs, conditions in the region are favorable for CVL transmission, creating a risk of VL for the human population in the city of Porto Alegre. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21808 10.5433/1679-0359.2016v37n6p4077 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21808 |
identifier_str_mv |
10.5433/1679-0359.2016v37n6p4077 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21808/20098 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 37 No. 6 (2016); 4077-4084 Semina: Ciências Agrárias; v. 37 n. 6 (2016); 4077-4084 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
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1799306074032963584 |