Prevalence, molecular characterization and risk factor analysis of Ehrlichia canis and Anaplasma platys in domestic dogs from Paraguay

Pérez-Macchi, Sandra; Pedrozo, Raquel; Bittencourt, Pedro; Müller, Ananda

doi:10.1016/j.cimid.2018.11.015

Cited by 22 publications

(15 citation statements)

References 82 publications

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“…Further studies on breed predisposition for A. platys infection in dogs are advocated. As expected, the absence of veterinary care and treatment against ticks were significant risk factors for A. platys infection, as reported previously [ 14 , 32 ].…”

supporting

confidence: 87%

Molecular detection and risk factors for Anaplasma platys infection in dogs from Egypt

Selim

Al-Mohammed

Abdelhady³

et al. 2021

Parasites Vectors

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Background Anaplasma platys is a tick-borne bacterium which infects blood platelets of dogs, causing canine cyclic thrombocytopenia. The disease is distributed worldwide, particularly in the tropics and subtropics, but information on the epidemiology of A. platys infection in dogs is fragmentary in many countries, including Egypt. In this study, we investigated the prevalence and risk factors associated with A. platys infection in dogs from Egypt. Methods A conventional PCR targeting a fragment of the 16S rRNA gene of A. platys was used to screen 500 dogs from five North Egyptian governorates. DNA sequencing and phylogenetic analysis were performed for one of the positive samples. Results The overall prevalence of A. platys in the studied dogs was 6.4%. Females of the German shepherd breed without veterinary care had higher odds for A. platys positivity. High tick infestation and lack of anti-tick treatment were also identified as risk factors for A. platys infection. Phylogenetic analysis revealed that the sequence obtained herein was closely related to sequences from Egypt, South Africa and Uruguay. Conclusions This is the first large-scale epidemiological study of A. platys in Egypt, where female German shepherd dogs without veterinary care, as well as dogs with high tick infestation and without anti-tick treatment are at a higher risk of infection. Graphical abstract

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supporting

confidence: 87%

Molecular detection and risk factors for Anaplasma platys infection in dogs from Egypt

Selim

Al-Mohammed

Abdelhady³

et al. 2021

Parasites Vectors

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“…Anaplasmosis has been detected in a larger population of dogs ( n = 384) sampled from Asunción; A. platys was detected and identified at a molecular prevalence 10.67% [625]. Ehrlichiosis has been reported in the same population of dogs ( n = 384) from Asunción with E. canis detected and identified at a molecular prevalence of 10.41% [625].…”

Section: Country Filesmentioning

confidence: 99%

A review on the occurrence of companion vector-borne diseases in pet animals in Latin America

2019

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Companion vector-borne diseases (CVBDs) are an important threat for pet life, but may also have an impact on human health, due to their often zoonotic character. The importance and awareness of CVBDs continuously increased during the last years. However, information on their occurrence is often limited in several parts of the world, which are often especially affected. Latin America (LATAM), a region with large biodiversity, is one of these regions, where information on CVBDs for pet owners, veterinarians, medical doctors and health workers is often obsolete, limited or non-existent. In the present review, a comprehensive literature search for CVBDs in companion animals (dogs and cats) was performed for several countries in Central America (Belize, Caribbean Islands, Costa Rica, Cuba, Dominican Republic, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Puerto Rico) as well as in South America (Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana (British Guyana), Paraguay, Peru, Suriname, Uruguay, Venezuela) regarding the occurrence of the following parasitic and bacterial diseases: babesiosis, heartworm disease, subcutaneous dirofilariosis, hepatozoonosis, leishmaniosis, trypanosomosis, anaplasmosis, bartonellosis, borreliosis, ehrlichiosis, mycoplasmosis and rickettsiosis. An overview on the specific diseases, followed by a short summary on their occurrence per country is given. Additionally, a tabular listing on positive or non-reported occurrence is presented. None of the countries is completely free from CVBDs. The data presented in the review confirm a wide distribution of the CVBDs in focus in LATAM. This wide occurrence and the fact that most of the CVBDs can have a quite severe clinical outcome and their diagnostic as well as therapeutic options in the region are often difficult to access and to afford, demands a strong call for the prevention of pathogen transmission by the use of ectoparasiticidal and anti-feeding products as well as by performing behavioural changes.

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“…um número bem maior de animais, no México, se mostraram infectados, isto se deve provavelmente, devido a maior sensibilidade metodológica adotada por aqueles pesquisadores e/ou a diferenças epidemiológicas regionais. Já Bulla et al (16) (28).…”

Section: Discussionunclassified

Aspectos Epidemiológicos E Hematológicos De Cães Infectados Com Ehrlichia Sp E Anaplasma Sp Em Jataí-Go, Brasil.

Stella

Silva

Moreira

et al. 2021

RVZ

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No Brasil, as infecções por hemoparasitas representam uma das principais causas de busca por assistência veterinária em cães. Infecções por bactérias da ordem Rickettsiales que incluem Ehrlichia sp. e Anaplasma sp. tem uma grande participação nessas buscas. Foi objetivo deste estudo elucidar aspectos epidemiológicos regionais e hematológicos de infecções por Anaplasma sp. e Ehrlichia sp, muitas vezes assintomáticas, em cães no município de Jataí-GO. Os dados deste estudo foram baseados em amostras de sangue de cães atendidos no Hospital Veterinário da Universidade Federal de Jataí, em Jataí, Goiás, entre os anos de 2005 e 2017. A observação microscópica da presença de mórulas de Ehrlichia sp. e Anaplasma sp. foi utilizada como critério de positividade. 5.015 animais foram atendidos nesse período e 691 (13,78%) deles foram positivos para a presença destes hemoparasitas. Entre esses animais, 9,23% (463/5015) possuíam mórulas de Ehrlichia sp., e 4,37% (219/5015) apresentavam mórulas típicas de Anaplasma sp., enquanto 0,18% (9/5015) possuíam mórula de ambas as espécies. As fêmeas representaram 57,89% (400/691) dos animais positivos e os machos 42,11% (291/691). 35,02% (242/691) dos animais tinham menos de 1 ano de vida, 54,13% (374/691) tinham entre 1 e 8 anos, e 10,85% (75/691) tinham mais de 8 anos. As fêmeas, com menos de um ano de idade e coinfectadas, apresentaram as alterações mais significativas nos aspectos hematológicos, hematócrito (29%), contagem de hemácias (3 milhões/mm3), contagem de plaquetas (40.000/mm3) e contagem total de leucócitos (16.000 mil/mm3), evidenciando anemia e trombocitopenia. Animais infectados com Anaplasma sp. e Ehrlichia sp., ao mesmo tempo, apresentaram trombocitopenia mais intensa, evidenciada em machos entre 1 e 8 anos (30.000/mm3). As infecções por Anaplasma sp. causaram uma diminuição severa na média da contagem de glóbulos vermelhos, evidenciada em machos (3 milhões/mm3) e fêmeas com menos de 1 ano (3,79 milhões/mm3).

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Prevalence, molecular characterization and risk factor analysis of Ehrlichia canis and Anaplasma platys in domestic dogs from Paraguay

Cited by 22 publications

References 82 publications

Molecular detection and risk factors for Anaplasma platys infection in dogs from Egypt

Molecular detection and risk factors for Anaplasma platys infection in dogs from Egypt

A review on the occurrence of companion vector-borne diseases in pet animals in Latin America

Aspectos Epidemiológicos E Hematológicos De Cães Infectados Com Ehrlichia Sp E Anaplasma Sp Em Jataí-Go, Brasil.

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