Canine vector-borne diseases in Brazil

Dantas‐Torres, Filipe

doi:10.1186/1756-3305-1-25

Cited by 155 publications

(137 citation statements)

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“…The occurrence (5.47%) of coinfections in dogs caused by A. platys and E. canis reinforces the hypothesis that these infections are probably transmitted by the same vector; similar results were observed in different geographical regions in Brazil (DANTAS-TORRES, 2008;DAGNONE et al, 2009;RAMOS et al, 2009;SANTOS et al, 2009). This phenomenon was also described in dogs from Thailand (SUKSAWAT et al, 2001b), Venezuela (SUKSAWAT et al, 2001a;HUANG et al, 2005), and Grenada (YABSLEY et al, 2008).…”

Section: Resultssupporting

confidence: 82%

Occurrence of Ehrlichia canis and Anaplasma platys in household dogs from northern Parana

Silva

Benitez

Girotto

et al. 2012

Rev. Bras. Parasitol. Vet.

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Canine monocytic ehrlichiosis caused primarily by Ehrlichia canis and canine thrombocytic anaplasmosis induced by Anaplasma platys are important emerging zoonotic tick-borne diseases of dogs. There is evidence that these pathogens can also affect humans. This study evaluated the presence of E. canis and A. platys in blood samples collected from 256 domiciled dogs in the municipality of Jataizinho, located in north region of the State of Parana, Brazil, by PCR assay. The occurrence of E. canis and A. platys was 16.4% (42/256) and 19.4% (49/256), respectively; while 5.47% (14/256) of the dogs evaluated were co-infected by these two organisms. The presence of E. canis and A. platys was not significantly associated with the variables evaluated (sex, age, outdoor access, and presence of ticks during blood collection). Infection of dogs by E. canis was associated with anemia and thrombocytopenia, while infection induced by A. platys was related only to thrombocytopenia. Canine monocytic ehrlichiosis and canine thrombocytic anaplasmosis should be included in the differential diagnoses when these hematological alterations are observed during routine laboratory evaluation of dogs.Keywords: Canine monocytic ehrlichiosis, canine thrombocytic anaplasmosis, PCR, anemia, thrombocytopenia. ResumoErliquiose monocítica canina, causada principalmente por Ehrlichia canis, e anaplasmose trombocítica canina, devida a infecção com Anaplasma platys, são importantes doenças transmitidas por carrapatos que acometem os cães, com evidências que podem também acometer o homem. O presente estudo avaliou a ocorrência desses agentes em amostras de sangue de 256 cães domiciliados na cidade de Jataizinho, na região Norte do Paraná, Brasil, utilizando a técnica da Reação em Cadeia da Polimerase (PCR). A ocorrência de E. canis e A. platys foi de 16,4% (42/256) e 19,4% (49/256), respectivamente, com 5,47% (14/256) dos animais apresentando coinfecção. Não foi observada associação significativa com as variáveis sexo, idade, acesso à rua e presença de carrapatos no momento da coleta de sangue. A infecção por E. canis teve relação com anemia e com trombocitopenia, enquanto a infecção por A. platys apresentou relação apenas com trombocitopenia. Com base nos resultados obtidos, reforçou-se a necessidade de que erliquiose e anaplasmose canina devem estar entre os diagnósticos diferenciais, quando da detecção de anemia e trombocitopenia em exames laboratoriais.

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Section: Resultssupporting

confidence: 82%

Occurrence of Ehrlichia canis and Anaplasma platys in household dogs from northern Parana

Silva

Benitez

Girotto

et al. 2012

Rev. Bras. Parasitol. Vet.

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“…Cases of co-infection by B. vogeli, E. canis and A. platys are frequently found due to the common tick vector of Brazilian dogs, R. sanguineus (DAGNONE et al, 2003;NAKAGHI et al, 2008;OLIVEIRA et al, 2008), which can transmit all three agents (DANTAS-TORRES, 2008). Moreover, the environmental conditions may have contributed to the animals' exposure to the agents, since they lived in the same location (CZC).…”

Section: Igg Antibodies Tomentioning

confidence: 99%

“…Furthermore, A. phagocytophilum also has been detected molecularly in dogs in the state of Rio de Janeiro, Brazil (SANTOS et al, 2011). Although dogs infected with A. platys and A. phagocytophilum usually present mild symptoms or are asymptomatic (HARRUS et al, 1997;KOHN et al, 2008;RAR;GOLOVLJOVA, 2011), some cases may be serious or fatal, particularly when co-infections are involved (DANTAS-TORRES, 2008). The confirmation of the occurrence of E. ewingii ) and A. phagocytophilum (SANTOS et al, 2011) in dogs from Minas Gerais and Rio de Janeiro, respectively, showed that other Anaplasmataceae agents circulate among dogs in Brazil, although the vector tick species involved in these transmission routes remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Molecular and serological detection of tick-borne pathogens in dogs from an area endemic for Leishmania infantumin Mato Grosso do Sul, Brazil

Sousa

André

Herrera³

et al. 2013

Rev. Bras. Parasitol. Vet.

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Tick-borne pathogens affect a wide range of vertebrate hosts. To identify tick-borne pathogens among dogs from Campo Grande, MS, Brazil testing seropositive for Leishmania infantum (syn. L. chagasi), a serological and molecular study was conducted to detect Ehrlichia canis, Anaplasma platys and Babesia vogeli in 60 serum and spleen samples. A confirmatory diagnosis of L. infantum based on serological and molecular assays was also performed, as was sequence alignment and phylogenetic analysis to assess the identity of the parasite species infecting these animals. IgG antibodies to Ehrlichia spp., B. vogeli and L. infantum were found, respectively, in 39 (65%), 49 (81.6%) and 60 (100%) of the sampled dogs. Twenty-seven (45%), fifty-four (90%), fifty-three (88.3%), two (3.3%) and one (1.6%) dog were positive, respectively, for E. canis, Leishmania spp., Leishmania donovani complex, Babesia sp. and Anaplasma sp. in PCR assays. After sequencing, the amplicons showed 99% of identity with E. canis, B. vogeli, A. platys and Leishmania chagasi isolates. The findings of this study indicate that L. infantum-seropositive dogs from Campo Grande are exposed to multiple tick-borne pathogens, which should therefore be included in the differential diagnosis of dogs with clinical suspicion of leishmaniasis.Keywords: Ehrlichia canis, Babesia vogeli, Anaplasma platys, Leishmania infantum, dogs, co-infection. ResumoPatógenos transmitidos por carrapatos atingem uma variedade de hospedeiros vertebrados. Para identificar os agentes patogênicos transmitidos por carrapatos entre cães soropositivos para Leishmania infantum no município Campo Grande-MS, foi realizado um estudo sorológico e molecular para a detecção de Ehrlichia canis, Anaplasma platys e Babesia vogeli em 60 amostras de soro e baço, respectivamente. Adicionalmente, foi realizado o diagnóstico confirmatório de L. infantum por meio de técnicas sorológicas e moleculares. Também foi realizado o alinhamento e análise filogenética das sequências para indicar a identidade das espécies de parasitas que infectam esses animais. Anticorpos IgG anti-Ehrlichia spp., anti-B. vogeli e anti-L. infantum foram detectados em 39 (65%), 49 (81,6%) e 60 (100%) dos cães amostrados, respectivamente. Vinte e sete (45%), cinquenta e quatro (90%), cinquenta e três (88,3%), dois (3,3%) e um (1,6%) cães mostraram-se positivos na PCR para E. canis, Leishmania spp., Leishmania donovani complex, Babesia sp. e Anaplasma sp., respectivamente. Após o seqüenciamento, os amplicons mostraram 99% de similaridade com isolados de E. canis, B. vogeli e A. platys e Leishmania chagasi. Os resultados deste estudo indicaram que os cães soropositivos para L. infantum de Campo Grande, MS, são expostos a vários agentes transmitidos por carrapatos, e, portanto, devem ser incluídos no diagnóstico diferencial em cães com suspeita clínica de leishmaniose.

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“…Two extensive reports on cestodes in wild carnivores in Brazil (Travassos, 1965;Vieira et al, 2008) do not include this species, which has only been found in domestic dogs and cats (Travassos, 1965;Dantas-Torres, 2008). A similar pattern is seen in other South American countries, as this cestode is reported only in the pampas fox (Lycalopex gymnocercus; Carnivora, Canidae) in Argentina (Lucherini and Vidal, 2008).…”

mentioning

confidence: 89%

Dipylidium caninum (Cyclophyllidea, Dipylidiidae) in a Wild Carnivore from Brazil

Vieira

Luque

Lima

et al. 2012

Journal of Wildlife Diseases

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Canine vector-borne diseases in Brazil

Cited by 155 publications

References 181 publications

Occurrence of Ehrlichia canis and Anaplasma platys in household dogs from northern Parana

Occurrence of Ehrlichia canis and Anaplasma platys in household dogs from northern Parana

Molecular and serological detection of tick-borne pathogens in dogs from an area endemic for Leishmania infantumin Mato Grosso do Sul, Brazil

Dipylidium caninum (Cyclophyllidea, Dipylidiidae) in a Wild Carnivore from Brazil

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