Erliquiose nos animais e no homem

Dagnone, Ana Silvia; Morais, Helio S. Autran de; Vidotto, Odilon

doi:10.5433/1679-0359.2001v22n2p191

Cited by 24 publications

(32 citation statements)

References 33 publications

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“…Thus, the presence of known competent tick vectors as well as reservoir hosts largely determine where ehrlichiosis is found. For instance, E. canis infecting dogs is mainly transmitted by Rhipicephalus sanguineus (DANTAS-TORRES, 2008), E. ruminantium (cattle) by ticks of genus Amblyomma, E. chaffeensis (deer) and E. ewingii (human and dogs) by A. americanum and Dermacentor variabilis (DUMLER et al, 2001;YABSLEY, 2010), and E. muris (rodents) by Haemaphysalis flava and Ixodes persulcatus (INOKUMA et al, 2007). Other tick species, such as A. cajennense, have been suspected to act as vectors of E. canis in rural areas (COSTA JR et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Ehrlichiosis in Brazil

Vieira

Biondo

Guimarães

et al. 2011

Rev. Bras. Parasitol. Vet.

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112

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Ehrlichiosis is a disease caused by rickettsial organisms belonging to the genus Ehrlichia. In Brazil, molecular and serological studies have evaluated the occurrence of Ehrlichia species in dogs, cats, wild animals and humans. Ehrlichia canis is the main species found in dogs in Brazil, although E. ewingii infection has been recently suspected in five dogs. Ehrlichia chaffeensis DNA has been detected and characterized in mash deer, whereas E. muris and E. ruminantium have not yet been identified in Brazil. Canine monocytic ehrlichiosis caused by E. canis appears to be highly endemic in several regions of Brazil, however prevalence data are not available for several regions. Ehrlichia canis DNA also has been detected and molecularly characterized in three domestic cats, and antibodies against E. canis were detected in free-ranging Neotropical felids. There is serological evidence suggesting the occurrence of human ehrlichiosis in Brazil but its etiologic agent has not yet been established. Improved molecular diagnostic resources for laboratory testing will allow better identification and characterization of ehrlichial organisms associated with human ehrlichiosis in Brazil.

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Section: Introductionmentioning

confidence: 99%

Ehrlichiosis in Brazil

Vieira

Biondo

Guimarães

et al. 2011

Rev. Bras. Parasitol. Vet.

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112

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“…Os vetores da erliquiose felina não são conhecidos e também, ainda não estão deϐinidas as vias de transmissão da infecção natural, sendo provável que a exposição a artrópodes e ingestão de roedores seriam as principais causas de contaminação dos felinos naturalmente infectados (D' Agnone et al 2001).…”

Section: Introductionunclassified

Investigação molecular de Ehrlichia spp. e Anaplasma platys em felinos domésticos: alterações clínicas, hematológicas e bioquímicas

et al. 2011

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ABSTRACT.-Corrêa E.S., Paludo G.R., Scalon M.C., Machado J.A., Lima A.C.Q., Pinto A. Ehrlichia sp. and Anaplasma platys are Gram-negative micro-organisms, obligate intracellular parasites, residing in cytoplasmic vacuoles of leukocytes and platelets, found in peripheral blood or tissue. Few reports have been made about ehrlichiosis and anaplasmosis in cats in Brazil, which are based on the presence of morulae in leukocytes and platelets, or by detecting antibodies. The objective of this study was to investigate the natural infection with Ehrlichia sp. and A. platys in cats in Campos dos Goytacazes-RJ, by hematoscopia and DNA detection of these agents. Samples of whole blood and serum from 91 cats, regardless of race, gender and age. Blood count, serum biochemistry and PCR using primers for Ehrlichia sp. and A. platys were perfomed. Data from hematoscopia showed 9.89% of morulae only in platelets. The DNA of A. platys was detected in 13.18% of the 91 samples and 44.44% of the positive at hematoscopia. The DNA of Ehrlichia sp. was not detected in any sample. All animals studied did not show clinical signs neither positive laboratory results. The data suggest that domestic cats can serve as potential reservoirs for A. platys as asymptomatic form of related diseases.

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“…Ehrlichia canis and Anaplasma platys are obligatorily intracellular organisms organized in clusters, called morulae, and frequently observed in leukocytes and platelets, respectively, with the possibility of concomitant infections (McBRIDE et al, 1996;COHN, 2003;SUKSAWAT et al, 2001a). These infectious diseases are of great importance for small animal clinics and public health, since they are increasingly prevalent in dogs and because there is evidence that these pathogens can also affect humans (DAGNONE et al, 2001; TAMÍ; TAMÍ-MAURY, 2004; NEER; HARRUS, 2006).…”

Section: Introductionmentioning

confidence: 99%

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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Erliquiose nos animais e no homem

Cited by 24 publications

References 33 publications

Ehrlichiosis in Brazil

Ehrlichiosis in Brazil

Investigação molecular de Ehrlichia spp. e Anaplasma platys em felinos domésticos: alterações clínicas, hematológicas e bioquímicas

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

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