Triatomine infestation and vector-borne transmission of Chagas disease in northwest and central Paraná, Brazil

Falavigna-Guilherme, Ana Lúcia; Santana, Regina Helena Carlucci; Pavanelli, Gilberto Cezar; Lorosa, Elias Seixas; Araújo, Silvana Márques de

doi:10.1590/s0102-311x2004000500012

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…Rhipicephalus sanguineus ticks feed on dogs infected by T. cruzi can acquire the infection [ 102 ], but there is no evidence supporting the development and subsequent transmission to naïve dogs. Trypanosoma cruzi infection in dogs is prevalent in all regions, except in South [ 103 ]. In areas where American trypanosomiasis (or Chagas disease) is endemic, it is estimated that around 15–50% of the dogs are exposed to T. cruzi infection [ 97 - 100 , 104 , 105 ].…”

Section: Protozoal Diseasesmentioning

confidence: 99%

Canine vector-borne diseases in Brazil

2008

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Canine vector-borne diseases (CVBDs) are highly prevalent in Brazil and represent a challenge to veterinarians and public health workers, since some diseases are of great zoonotic potential. Dogs are affected by many protozoa (e.g., Babesia vogeli, Leishmania infantum, and Trypanosoma cruzi), bacteria (e.g., Anaplasma platys and Ehrlichia canis), and helminths (e.g., Dirofilaria immitis and Dipylidium caninum) that are transmitted by a diverse range of arthropod vectors, including ticks, fleas, lice, triatomines, mosquitoes, tabanids, and phlebotomine sand flies. This article focuses on several aspects (etiology, transmission, distribution, prevalence, risk factors, diagnosis, control, prevention, and public health significance) of CVBDs in Brazil and discusses research gaps to be addressed in future studies.

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Section: Protozoal Diseasesmentioning

confidence: 99%

Canine vector-borne diseases in Brazil

2008

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“…In fact, the city of Curitiba has been considered to be a non-endemic area for both of these diseases and, thus, these results may reflect the historical absence of vectors and pathogens (BRASIL, 2014a, b). However, canine visceral leishmaniasis was previously detected in 1/364 stray dogs (0.0027%) from a city situated close to Curitiba (FREHSE et al, 2010), and triatomine (T. cruzi vector) infestation was detected in 7/9 cities (77.8%) in the northern part of the state of Paraná (FALAVIGNA-GUILHERME et al, 2004). Moreover, the first autochthonous case of human visceral leishmaniasis in the state of Paraná was registered in 2015 in city of Foz do Iguaçu, and the first death due to this disease was reported in January 2016 (AEN, 2015).…”

Section: Introductionmentioning

confidence: 99%

Serosurvey for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospora caninum in neighborhood dogs in Curitiba-Paraná, Brazil

Constantino

Pellizzaro

Paula

et al. 2016

Rev. Bras. Parasitol. Vet.

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Neighborhood dogs may act as reservoirs for several zoonotic protozoan infections, particularly in urban areas, thus constituting a potential public health threat. Accordingly, the aim of the present study was to evaluate the exposure of neighborhood dogs to four protozoan pathogens in public areas with high levels of human movement in Curitiba, southern Brazil. Blood samples from 26 neighborhood dogs were screened by means of the indirect immunofluorescent antibody test (IFAT) for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospora caninum, and a questionnaire was answered by the respective keeper. A total of 8/26 dogs (30.7%) seroreactive to T. gondii, 3/26 (11.5%) to N. caninum and 2/26 (7.7%) to both were identified. All the samples were seronegative for T. cruzi and Leishmania spp. Pathogen seroreactivity was not associated with the daily human movements or other epidemiological variables investigated (p > 0.05). In conclusion, the low seroprevalence for T. gondii and N. caninum indicated low environmental and food risk for animal infection and the seronegativity for Leishmania spp. and T. cruzi may reflect the absence of these pathogens in urban areas of Curitiba. Moreover, neighborhood dogs may be used as environmental sentinels for the presence of protozoan pathogens and their vectors.

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“…Recentemente, foi publicado um volume significativo de informações sobre a prevalência de espécies vetoras do T. cruzi no Paraná e sobre o perfil epidemiológico dos indivíduos acometidos 10,11,12,13 . No entanto, nenhuma informação se encontra disponível sobre a prevalência das formas clínicas da doença de Chagas nesse Estado.…”

Section: Introductionunclassified

Perfil clínico-epidemiológico de pacientes com doença de Chagas no Hospital Universitário de Maringá, Paraná, Brasil

et al. 2006

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This paper describes the clinical and epidemiological profile of patients with Chagas disease treated in outpatient and inpatient departments at the Maringá University Hospital (UHM) in Paraná State, Brazil, from May 1998 to May 2003. Mean age was higher among hospitalized patients (p < 0.000). Hospitalized patients were predominantly males, as opposed to inpatients who were mostly females (p = 0.0033). Of the 95 patients, 60% were born in the States of Minas Gerais and São Paulo and 25.3% in Paraná. Family history for Chagas was positive in 68.9%, while 53.3% reported the presence of triatomine vectors in the household. In decreasing order, the most common clinical forms were cardiac, digestive, indeterminate, and cardiodigestive. The indeterminate form predominated among outpatients, as opposed to the cardiac and digestive forms among inpatients. Chronic cardiac and digestive complications were the principal complaints at hospital admission. This study showed particularly high percentages of cardiac (38.9%) and digestive disease (26.3%) as compared to other geographic areas. The Maringá University Hospital provides symptomatic care for these complications and does not prioritize etiological treatment, even for patients in the indeterminate phase.

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Triatomine infestation and vector-borne transmission of Chagas disease in northwest and central Paraná, Brazil

Abstract: Abstract

Cited by 11 publications

References 13 publications

Canine vector-borne diseases in Brazil

Canine vector-borne diseases in Brazil

Serosurvey for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospora caninum in neighborhood dogs in Curitiba-Paraná, Brazil

Perfil clínico-epidemiológico de pacientes com doença de Chagas no Hospital Universitário de Maringá, Paraná, Brasil

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