Risk factors associated with seroprevalence of <i>Neospora caninum</i> in dogs from urban and rural areas of milk and coffee production in Minas Gerais state, Brazil

Nogueira, Clayton I.; Mesquita, Leonardo Pereira; Abreu, Camila C.; Nakagaki, Karen Yumi Ribeiro; Seixas, Josilene Nascimento; Bezerra, Pedro Soares; Rocha, Christiane Maria Barcellos Magalhães da; Guimarães, Antônio Marcos; Peconick, Ana Paula; Varaschin, Mary Suzan

doi:10.1017/s0950268813000162

Cited by 14 publications

(21 citation statements)

References 23 publications

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“…Serological surveys have also reported moderate to high levels of exposure to parasites such as Neospora caninum and T. gondii in dogs and cats in Brazil [151,168-173]. For instance, in a recent study carried out in south-eastern Brazil, 386 cats were assayed by indirect immunofluorescence antibody tests (IFAT) for the presence of antibodies against T. gondii and 63 (16.3%) of them were positive [172].…”

Section: Reviewmentioning

confidence: 99%

“…In another study conducted in south-eastern Brazil, 703 dogs from urban and rural areas were tested for N. caninum and 11.4% of them were positive. The likelihood of being positive to N. caninum was associated with dogs aged >4 years, guard dogs, hunting dogs, and with dogs from dairy farms with a history of bovine abortion [173]. In particular, among rural dogs, an association with seroprevalence was recorded for milk farms, dogs not fed with commercial food, hunting, and guard dogs.…”

Section: Reviewmentioning

confidence: 99%

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Dogs, cats, parasites, and humans in Brazil: opening the black box

2014

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Dogs and cats in Brazil serve as primary hosts for a considerable number of parasites, which may affect their health and wellbeing. These may include endoparasites (e.g., protozoa, cestodes, trematodes, and nematodes) and ectoparasites (i.e., fleas, lice, mites, and ticks). While some dog and cat parasites are highly host-specific (e.g., Aelurostrongylus abstrusus and Felicola subrostratus for cats, and Angiostrongylus vasorum and Trichodectes canis for dogs), others may easily switch to other hosts, including humans. In fact, several dog and cat parasites (e.g., Toxoplasma gondii, Dipylidium caninum, Ancylostoma caninum, Strongyloides stercoralis, and Toxocara canis) are important not only from a veterinary perspective but also from a medical standpoint. In addition, some of them (e.g., Lynxacarus radovskyi on cats and Rangelia vitalii in dogs) are little known to most veterinary practitioners working in Brazil. This article is a compendium on dog and cat parasites in Brazil and a call for a One Health approach towards a better management of some of these parasites, which may potentially affect humans. Practical aspects related to the diagnosis, treatment, and control of parasitic diseases of dogs and cats in Brazil are discussed.

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Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

Dogs, cats, parasites, and humans in Brazil: opening the black box

2014

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“…Some studies have found an increased prevalence of antibodies against N. caninum in dogs from rural areas, suggesting a greater exposure to horizontal transmission from contact with aborted fetuses and fetal membranes (BRUHN et al, 2013;NOGUEIRA et al, 2013). However, De Sousa et al (2012) obtained a seroprevalence of 4.2%, with half of the dogs' population from urban areas and half from rural areas with no significant difference observed between the groups.…”

Section: Discussionmentioning

confidence: 96%

Toxoplasma gondii, Neospora caninum and Leishmania spp. serology and Leishmania spp. PCR in dogs from Pirassununga, SP

Seabra

Pereira

Kuwassaki

et al. 2015

Rev. Bras. Parasitol. Vet.

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We examined the presence of antibodies against the parasites Toxoplasma gondii, Neospora caninum, and Leishmania spp., as well the presence of DNA from Leishmania spp., in dogs from Pirassununga -SP. The seropositivity rate was compared with the animals' originating location. Three hundred seventy-three blood samples from the county's kennel and local veterinary clinics were collected and analyzed. A total of 300 samples were tested for T. gondii and N. caninum using an indirect immunofluorescence antibody test (IFAT); 45% (135/300) were positive for T. gondii and 24.3% (73/300) were positive for N. caninum. Three hundred seventy-three samples were tested for Leishmania spp. using the IFAT. Of these, 4.6% (17/373) were positive. Additionally, 145 samples were tested using a polymerase chain reaction (PCR); of these samples, 0.7% (1/145) was positive. Considering the results, we conclude that these parasites are present in the city of Pirassununga -SP and that the animals have contact with the protozoan. It is therefore necessary to create methods for disease prevention to maintain both animal and human health in regard to leishmaniasis and toxoplasmosis.Keywords: IFAT, PCR, dogs, epidemiology, Leishmania spp., Neospora caninum, Toxoplasma gondii. ResumoAvaliou-se a presença de anticorpos contra Toxoplasma gondii, Neospora caninum e Leishmania spp.; assim como a presença de DNA de Leishmania spp. em cães de Pirassununga-SP, e associou-se sua soropositividade ao local de origem dos animais. Foram coletadas 373 amostras de sangue do canil municipal e de clínicas veterinárias locais, que foram analisadas pelo teste de Imunofluorescência Indireta (RIFI). Do total, 300 amostras foram testadas para T. gondii e N. caninum, das quais 45% (135/300) foram positivas para T. gondii e 24,3% (73/300) para N. caninum. Para Leishmania spp. foram avaliadas 373 amostras pela RIFI, sendo 4,6% (17/373) positivas. Adicionalmente, 145 amostras foram testadas utilizando-se a PCR e, dessas amostras, 0,7% (1/145) foi positiva. Considerando-se os resultados, pode-se concluir que esses parasitos estão presentes na cidade de Pirassununga -SP e que os animais tiveram contato com os protozoários. Faz-se, dessa forma, necessária a divulgação de meios de prevenção às doenças, com o intuito de manter o controle sobre as mesmas, tanto na saúde animal quanto na saúde humana, em relação à leishmaniose e à toxoplasmose.

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“…The age of dogs was a statistically significant factor in nine reports; older dogs were more likely to be seropositive FERNANDES et al, 2004;AZEVEDO et al, 2005;ANDREOTTI et al, 2006;CUNHA et al, 2008;MINERVINO et al, 2012;NOGUEIRA et al, 2013;BALTHAZAR et al, 2013;RAIMUNDO et al, 2015). Gender and breed were not associated with presence of antibodies.…”

Section: Epidemiologymentioning

confidence: 95%

All about neosporosis in Brazil

Cerqueira‐Cézar

Calero‐Bernal

Dubey

et al. 2017

Rev. Bras. Parasitol. Vet.

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Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.Keywords: Neospora caninum, neosporosis, domestic animals, wild animals, Brazil. ResumoNeospora caninum é um protozoário parasita que possui os canídeos domésticos e selvagens, coiotes e lobos cinzentos como hospedeiros definitivos e vários animais de sangue quente como hospedeiros intermediários. Foi cultivado e nomeado em 1988. A neosporose é uma das principais doenças em bovinos e não tem significância em saúde pública. Desde 1990, N. caninum tem emergido como uma das principais causas de aborto em bovinos em todo o mundo, inclusive no Brasil. N. caninum também causa infecções clínicas em várias outras espécies animais. Consideráveis avanços foram feitos na compreensão da biologia desse parasita e há mais de 200 trabalhos sobre o assunto no Brasil. No entanto, a maioria dos relatos de neosporose do Brasil são relacionados a sorologia. Em geral, pouco se sabe sobre a neosporose clínica no Brasil, particularmente em bovinos. Os poucos relatos referem-se a casos esporádicos de aborto sem informações sobre epidemias ou surtos de aborto. O objetivo da presente revisão é resumir todos os relatos sobre N. caninum no Brasil e sugerir tópicos para pesquisas futuras, incluindo a prevalência de oocistos de N. caninum no solo ou em fezes caninas e determinar se há hospedeiros definitivos adicionais, exceto o cão doméstico no país. Uma pesquisa nacional em bovinos usando parâmetros definidos seria de grande importância. Pesquisas futuras deveriam ser focadas na caracterização de cepas de N. caninum, possibilidade de produção de vacinas e a relação epidemiológica entre a vida selvagem e o gado.Palavras-chave: Neospora caninum, neospo...

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Risk factors associated with seroprevalence of Neospora caninum in dogs from urban and rural areas of milk and coffee production in Minas Gerais state, Brazil

Cited by 14 publications

References 23 publications

Dogs, cats, parasites, and humans in Brazil: opening the black box

Dogs, cats, parasites, and humans in Brazil: opening the black box

Toxoplasma gondii, Neospora caninum and Leishmania spp. serology and Leishmania spp. PCR in dogs from Pirassununga, SP

All about neosporosis in Brazil

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