The first report of Hepatozoon sp. (Apicomplexa: Hepatozoidae) in neotropical felids from Brazil

Metzger, Betina; Paduan, Karina dos Santos; Rubini, Adriano Stefani; Oliveira, Tadeu Gomes de; Pereira, Cristiane Tambascia; O’Dwyer, Lúcia Helena

doi:10.1016/j.vetpar.2007.12.006

Cited by 46 publications

(46 citation statements)

References 21 publications

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“…This is also true for epidemiological studies, which focus mainly on pathogens surveys (i.e. Filoni et al 2006;Fiorello et al 2007;Metzger et al 2008;Jorge et al 2010;Widmer et al 2011).…”

Section: Introductionmentioning

confidence: 98%

Live-trapping Ocelots (Leopardus pardalis): traps, baits, injuries, immobilization and costs

et al. 2017

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The capture of wild animals can provide important information on community structure, population dynamics, home range size, activity patterns, habitat use, denning, social behavior and health status. The objective of this study was to describe the method of capture with details on baits, injuries, non-target captures, anesthesia and costs, to evaluate its success as part of a health evaluation program of ocelots in a Brazilian Atlantic Forest Reserve. From a total of 1,011 trap-night effort in 86 days, we had 68 capture events composed of ocelots (22%, n=15) and non-target species (78%, n = 53). We captured 10 individual ocelots in 15 capture events, corresponding to 5.7 days to capture one ocelot. Capture efficiency was 14.8 ocelots/1,000 trap-nights effort. We suggest capture methods should be selected and implemented based on the following criteria: (i) high capture efficiency; (ii) high selectivity; (iii) low injury rate; (iv) high immobilization suitability; and (v) low costs, in order to enable comparisons of studies from different research groups and from different study areas, allowing a deliberate choice of the best method.

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“…This is also true for epidemiological studies, which focus mainly on pathogens surveys (i.e. Filoni et al 2006;Fiorello et al 2007;Metzger et al 2008;Jorge et al 2010;Widmer et al 2011).…”

Section: Introductionmentioning

confidence: 98%

Live-trapping Ocelots (Leopardus pardalis): traps, baits, injuries, immobilization and costs

et al. 2017

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“…A presença de anemia, provavelmente não é decorrente da infecção pelo protozoário, visto que na espécie L. pardalis no Brasil, não há evidências de qualquer sinal clínico de hepatozoonose (Metzger et al, 2008;Mercer et al, 1988). A concentração sérica da ureia sofre influências de vários fatores, dentre eles dieta rica em proteínas e desidratação, desta forma, animais carnívoros estão susceptíveis a sofrerem aumento da concentração sérica da ureia (Thrall et al, 2004).…”

Section: Resultsunclassified

“…Embora ainda não haja estudos sobre a prevalência de Hepatozoon spp. pela técnica de esfregaço sanguíneo em L. pardalis, Metzger et al (2008), utilizando o diagnóstico molecular da Reação em Cadeia de Polimerase, identificaram em L. pardalis 36,36% de positividade do agente.…”

Section: Resultsunclassified

First report Hepatozoon spp. in ocelot (Leopardus pardalis) in Mato Grosso do Sul

Braz

Umeda²

2015

AVB

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RESUMO -A hepatozoonose é uma doença transmitida por carrapatos, causada pelo protozoário Hepatozoon spp. que acomete uma grande variedade de animais. No Brasil, existem poucos relatos da doença em jaguatiricas (Leopardus pardalis) assim como dados sobre sua epidemiologia, patogenicidade, vetores e caracterização genética. Este trabalho tem por objetivo a ocorrência de Hepatozoon spp em uma jaguatirica de vida livre atendida em um Hospital Veterinário Escola, em Mato Grosso do Sul. No hemograma, durante a pesquisa de hemoparasitas, foi observado gametócito de Hepatozoon spp. em neutrófilo e monócito. Na análise hematológica constatou-se anemia microcítica normocrômica e leucocitose com neutrofilia, monocitose e linfopenia. Palavras-Chave:Gametócito; hemoparasita; animal silvestre. ABSTRACT -The hepatozoonosis is a tick-borne disease caused by protozoan Hepatozoon spp. affecting a wide range of animals. In Brazil, there are few reports of the disease in ocelots (Leopardus pardalis) as well as data on its epidemiology, pathogenicity, vectors and genetic characterization. This work aims the occurrence of Hepatozoon spp in a free ocelot life treated at a Veterinary School Hospital in Mato Grosso do Sul. In the CBC, when searching for hemoparasites was observed gametocyte of Hepatozoon spp. on neutrophils and monocytes. In hematological analysis it was found microcytic normochromic anemia and leukocytosis with neutrophilia, monocytosis and lymphopenia.

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“…This can be seen in relation to the studies by in Sao Paulo, Paludo et al (2005) in Brasilia, Lasta et al (2009) in Rio Grande do Sul, and Spolidorio et al (2009) in Espírito Santo, using samples obtained from dogs. Other studies have also been developed using samples from cats and the only species identified was still H. canis (Metzer et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…Today, more than 300 species of the genus Hepatozoon have been identified in different vertebrates, including amphibians, reptiles, marsupials, birds and mammals, and these can be transmitted by different vectors, including ticks, lice, mosquitoes, sand flies, tsetse flies, flea mites and triatomines (Metzer et al, 2008). Two species are recognized as causing disease in dogs: Hepatozoon canis and Hepatozoon americanum.…”

Section: Introductionmentioning

confidence: 99%

Molecular diagnosis of Hepatozoon canis in symptomatic dogs in the city of Goiania, Goiás, Brazil

Duarte

Parente

Neto

et al. 2016

Arq. Bras. Med. Vet. Zootec.

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More than 300 species have been described in the genus Hepatozoon, occurring in different vertebrates. Among these, only Hepatozoon canis and Hepatozoon americanum are seen in dogs. Different methods may be used for laboratory diagnosis. The most common of these is direct parasitological examination of parasite stages in blood smears. The aim of this investigation was to conduct a phylogenetic study on Hepatozoon isolates from symptomatic dogs in the city of Goiânia, Goiás, Brazil. Blood samples were obtained from 40 symptomatic dogs that had been referred to the Veterinary Hospital of the Federal University of Goiás. Among these, only two samples were positive for Hepatozoon spp. using the direct parasitological method. These samples were then subjected to a DNA extraction process and amplification of a fragment of the 18S rRNA by means of PCR. Subsequently, the PCR products from each sample were purified and sequenced. The sequences obtained were then analyzed using the BLASTn algorithm, which identified both sequences of this study as Hepatozoon canis. By applying the Mega4 software, it was confirmed that these isolates of H. canis from dogs in Goiânia are similar to other reference isolates of the same species from other regions of Brazil and worldwide.Keywords: Canis familiaris, hepatozoonosis, molecular epidemiology, phylogeny RESUMO São descritas mais de 300 espécies do gênero Hepatozoon que acometem diferentes vertebrados. Entre estas, apenas

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The first report of Hepatozoon sp. (Apicomplexa: Hepatozoidae) in neotropical felids from Brazil

Cited by 46 publications

References 21 publications

Live-trapping Ocelots (Leopardus pardalis): traps, baits, injuries, immobilization and costs

Live-trapping Ocelots (Leopardus pardalis): traps, baits, injuries, immobilization and costs

First report Hepatozoon spp. in ocelot (Leopardus pardalis) in Mato Grosso do Sul

Molecular diagnosis of Hepatozoon canis in symptomatic dogs in the city of Goiania, Goiás, Brazil

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