Occurrence of Hepatozoon sp. in dogs in the urban area originating from a municipality in southeastern Brazil

Gomes, Paula Virgínia; Mundim, Maria José Santos; Mundim, Antônio Vicente; Ávila, Diego Fernando de; Guimarães, Ednaldo Carvalho; Cury, Márcia Cristina

doi:10.1016/j.vetpar.2010.07.020

Cited by 24 publications

(22 citation statements)

References 29 publications

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“…The authors reported an unsuccessful attempt to describe the development of H. canis in R. sanguineus and A. cajennense ticks (DEMONER et al, 2013). Similarly, previous studies performed by Forlano et al (2005) and Gomes et al (2010) also failed to detect any developmental stages of H. canis in ticks (R. sanguineus, A. aureolatum and A. cajennense) collected from naturally infected dogs in Rio de Janeiro and Uberlândia, respectively. On the other hand, the development of H. canis in populations of R. sanguineus in Europe has been reported frequently (BANETH et al, 2001;GIANNELLI et al, 2013).…”

Section: Resultssupporting

confidence: 72%

Molecular identification of Hepatozoon canis in dogs from Campo Grande, Mato Grosso do Sul, Brazil

Ramos

Babo-Terra

Pedroso

et al. 2015

Rev. Bras. Parasitol. Vet.

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The aim of this study was to investigate the occurrence of Hepatozoon species infecting dogs in the municipality of Campo Grande, Mato Grosso do Sul (MS), Brazil, using blood samples (n = 165) drawn from dogs. The species Hepatozoon canis was identified in 3.63% of the tested animals using molecular tools. Further studies are needed to determine the clinical relevance of this infection and the main arthropod vectors involved in its transmission.Keywords: Dogs, epidemiology, Hepatozoon canis, midwestern Brazil, PCR. ResumoO objetivo deste estudo foi identificar a frequência e espécies de Hepatozoon infectando cães no município de Campo Grande, Mato Grosso do Sul, Brasil. Uma amostragem de 165 animais foi utilizada e, por meio do uso de ferramentas moleculares, a espécie Hepatozoon canis foi identificada em 3,63% dos animais. Mais estudos são necessários para identificar a relevância clínica e os principais vetores envolvidos na transmissão desse protozoário na região.Palavras-chave: Cães, epidemiologia, Hepatozoon canis, centro-oeste do Brasil, PCR.

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Section: Resultssupporting

confidence: 72%

Molecular identification of Hepatozoon canis in dogs from Campo Grande, Mato Grosso do Sul, Brazil

Ramos

Babo-Terra

Pedroso

et al. 2015

Rev. Bras. Parasitol. Vet.

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“…could be due to many factors including the distribution and population density of the vector (Otranto et al 2011), the sampling methodology and the characteristics of the targeted dog population (Gomes et al 2010;De Miranda et al 2014). An analysis of risk factors indicated that male dogs were more often infected with E. canis than the females, but this association was statistically non-significant (P = 0.15) confirming previous studies reporting that there is no correlation between the sex and the presence of E. canis infection in dogs (Rani et al 2011;Aktas et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Molecular detection of Ehrlichia canis in dogs from three districts in Punjab (Pakistan)

Malik

Qamar

Ain

et al. 2018

Veterinary Medicine & Sci

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Canine monocytic ehrlichiosis is a tick-borne disease caused by an intracellular alpha-proteobacterium, Ehrlichia canis, which replicates within mononuclear cells in the host. This study was designed to use a polymerase chain reaction (PCR) protocol for the molecular detection of E. canis by the amplification of a portion of its 16S rRNA gene, as well as the effects of this alpha-proteobacterium on the haematological parameters of the sampled dogs and the risk factors associated with E. canis infection. A total of 151 blood samples were collected from dogs of various breeds at three sampling sites (Lahore, Rawalpindi/Islamabad and Multan) in Punjab, Pakistan. Data regarding the epidemiological factors (including age, gender, breed, body temperature, deworming, vaccination, mucous membrane status, hydration status, the presence of haematuria and tick infestation) were collected through a questionnaire at the time of sample collection. A 400 bp DNA fragment of the 16S rRNA gene of E. canis was amplified from 42 dog blood samples (28% of the total), [Lahore (N = 24), Rawalpindi/Islamabad (N = 13) and Multan (N = 05)] through PCR. Data analysis revealed that the character of the animals (age, sex and breed) had no significant association (P > 0.05) with the presence of E. canis. Various haematological parameters were also compared, and the results revealed that all of the parameters remained unaffected, except significantly lower white blood cell counts (P = 0.004) in E. canis-positive blood samples, as compared with the control group. We concluded that this is the first molecular confirmation of canine infection by E. canis using PCR. Moreover, no specific epidemiological parameter was found associated with the prevalence of E. canis in dogs.

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“…So far, there have not been any reports of the presence of R. sanguineus in Brazil, either naturally or experimentally infected with H. canis (FORLANO et al, 2005;GOMES et al, 2010), although this tick species is considered to be the main vector (BANETH et al, 2007). Gomes et al (2010) evaluated H. canis infection in 300 dogs from urban areas of Uberlândia and found that 26% of the dogs were infested with R. sanguineus and 7.66% were infected with Hepatozoon sp.…”

Section: Transmissionmentioning

confidence: 99%

“…Gomes et al (2010) evaluated H. canis infection in 300 dogs from urban areas of Uberlândia and found that 26% of the dogs were infested with R. sanguineus and 7.66% were infected with Hepatozoon sp. The ticks were found in 43.5% of the infected dogs and no significant association was found between tick infestation and H. canis infection (p > 0.05).…”

Section: Transmissionmentioning

confidence: 99%

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Brazilian canine hepatozoonosis

O’Dwyer

2011

Rev. Bras. Parasitol. Vet.

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The genus Hepatozoon includes hundreds of species that infect birds, reptiles, amphibians and mammals, in all continents with tropical and subtropical climates. Two species have been described in domestic dogs: H. canis, reported in Europe, Asia, Africa, South America and the United States; and H. americanum, which so far has only been diagnosed in the United States. In Brazil, the only species found infecting dogs is H. canis. The objective of this review was to detail some aspects of canine hepatozoonosis, caused by H. canis, and the main points of its biology, transmission, pathogenicity, symptoms, epidemiology and diagnostic methods, with emphasis on research developed in Brazil.

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Occurrence of Hepatozoon sp. in dogs in the urban area originating from a municipality in southeastern Brazil

Cited by 24 publications

References 29 publications

Molecular identification of Hepatozoon canis in dogs from Campo Grande, Mato Grosso do Sul, Brazil

Molecular identification of Hepatozoon canis in dogs from Campo Grande, Mato Grosso do Sul, Brazil

Molecular detection of Ehrlichia canis in dogs from three districts in Punjab (Pakistan)

Brazilian canine hepatozoonosis

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