Seroepidemiology of Toxoplasma gondii, Neospora caninum, and Leishmania spp. infections and risk factors for cats from Brazil

Coelho, Willian Marinho Dourado; Amarante, Alessandro Francisco Talamini do; Apolinário, Juliana de Carvalho; Coelho, Natália Marinho Dourado; Lima, Valéria Marçal Felix de; Perri, Sílvia Helena Venturoli; Bresciani, Kátia Denise Saraiva

doi:10.1007/s00436-011-2461-x

Cited by 50 publications

(52 citation statements)

References 28 publications

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“…Several authors reported that they found no significant influence of gender on T. gondii infection (BRESCIANI et al, 2007;COELHO et al, 2011). In this study, we found that the we found that the correlation between gender and area of activity significantly influenced the probability of T. gondii infection (p = 0.0324).…”

Section: Discussionsupporting

confidence: 42%

Serological detection of Toxoplasma gondii, Leishmania infantum and Neospora caninum in cats from an area endemic for leishmaniasis in Brazil

Sousa

Herrera

Domingos

et al. 2014

Rev. Bras. Parasitol. Vet.

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An investigation was made into the occurrence of antibodies to Toxoplasma gondii, Leishmania infantum and Neospora caninum in 151 domestic cats, based on the indirect fluorescent antibody test (IFAT). Serum samples were collected from 151 domestic cats (65 free-roaming and 86 domiciled cats; 55 males and 96 females) in Campo Grande, Mato Grosso do Sul, Brazil between January and April 2013. IgG antibodies to T. gondii, L. infantum and N. caninum were found, respectively, in 49 (32.5%), 34 (22.5%) and 10 (6.6%) sampled cats. A positive correlation was found between T. gondii and N. caninum, T. gondii and L. infantum, and N. caninum and L. infantum (p < 0.05) infections. Also, a significant interaction was identified between gender and area of activity on the probability of T. gondii (p = 0.0324) infection. However, no significant interaction was observed between gender and area of activity on infections by either N. caninum or L. infantum. This study showed that cats from an area endemic for visceral leishmaniasis in Brazil are exposed to three different protozoans, two of which are causal agents of important zoonosis.Keywords: Cats, Leishmania infantum, Neospora caninum, Toxoplasma gondii, serology, Brazil. ResumoO presente estudo teve como objetivo investigar a ocorrência de anticorpos anti-Toxoplasma gondii, Leishmania infantum e Neospora caninum, em 151 gatos, por meio da Reação de Imunofluorescência Indireta (RIFI). Entre os meses de janeiro e abril de 2013, amostras de soro foram coletadas de 151 gatos domésticos (65 gatos errantes e 86 gatos domiciliados; 55 machos e 96 fêmeas), de Campo Grande, Mato Grosso do Sul, Brasil. Anticorpos IgG anti-T. gondii, anti-L. infantum e anti-N. caninum foram encontrados em 49 (32,5%) , 34 (22,5%) e 10 (6,6%) gatos amostrados, respectivamente. Verificou-se uma associação estatisticamente significativa entre as infecções por T. gondii e N. caninum, T. gondii e L. infantum e N. caninum e Leishmania infantum (p < 0,05). Além disso, foi observada uma interação significativa entre sexo, área de atividade na probabilidade de infecção por T. gondii (p = 0,0324). No entanto, não foi observada interação significativa entre sexo e área de atividade nas infecções por N. caninum e L. infantum. Este estudo mostrou que os gatos de uma área endêmica brasileira para leishmaniose visceral são expostos a três diferentes protozoários, sendo dois deles importantes agentes zoonóticos.

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Section: Discussionsupporting

confidence: 42%

Serological detection of Toxoplasma gondii, Leishmania infantum and Neospora caninum in cats from an area endemic for leishmaniasis in Brazil

Sousa

Herrera

Domingos

et al. 2014

Rev. Bras. Parasitol. Vet.

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“…In the present study, 3,85% of the sampled cats were seroreactive for Leishmania infantum chagasi, corroborating previous reports in other endemic regions of Brazil [30,31].…”

Section: Discussionsupporting

confidence: 92%

Survey of Leishmania Infantum Chagasi in Wild and Domestic Animals in Urban Area and Atlantic Rainforest Fragment in Northeast, Brazil

Costa¹,

Ferreira²,

Fournier³

et al. 2014

J Biodivers Biopros Dev

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Objective: Survey of Leishmania infantum chagasi in domestic and wild mammals in urban area and a Biological Reserve in Natal, Rio Grande do Norte, Brazil.Methods: Domestic and wild mammals were captured in Brazilian northeast Atlantic Rainforest, Rio Grande do Norte state. Serological and parasitological studies were conducted; Leishmania isolates were positioned in phylogeny based on small subunit rDNA (SSU rDNA) and glycosomal-3-phosphate dehydrogenase (gGAPDH) gene sequences.Results: Blood samples were collected from 138 wild and domestic mammals, comprising 66 dogs, 52 cats and 20 marsupials. Antibodies were found in 27 dogs (40.91%), two cats (3.85%) and one Didelphis albiventris (5%). The cultures of popliteal lymph node aspirates were positive in nine dogs (13.64%) and from seven (10.61%) the parasite was isolated and cryopreserved. All isolates were positioned in phylogeny based on SSU rDNA and gGAPDH in the same branch with L. infantum chagasi. Conclusions:The proximity of the forest fragment with humans and their domestic animals provide interference in the health of wild animals. Measures to control the population of feral cats and environmental conservation should be implemented due the importance of visceral leishmaniasis.

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“…Although there were only a small number of seropositive animals, these observations suggest that those categories would not represent risk factors for T. gondii and that all cats are equally exposed to infection. Similar findings were obtained by Bresciani et al (2007), Coelho et al (2011) andCardia et al (2013), in cats from Brazil. Nevertheless, seroprevalence of infection in domestic cats has been found to vary with their lifestyle (wild, stray or domestic), age, serological test used and geographical location (Gauss et al, 2003).…”

Section: Discussionsupporting

confidence: 88%

Antibodies to Toxoplasma gondii and Leishmania spp. in domestic cats from Luanda, Angola

Lopes

Oliveira

Granada

et al. 2017

Veterinary Parasitology

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A B S T R A C TToxoplasma gondii and Leishmania spp. are zoonotic protozoa of importance to animal and public health. The present study aimed to assess for the first time the seroprevalence of these zoonotic parasites in a domestic feline population living in Luanda, Angola. One hundred and two cats were sampled at a veterinary medical centre, from May 2014 to February 2016. The age of the cats ranged from 2.5 to 143 months (median: 12 months; interquartile range: 7.5-24). Serum samples were tested for immunoglobulin (Ig) G antibodies to T. gondii at twofold dilutions of 1:20 to 1:2560 with a modified agglutination test (MAT) commercial kit. The direct agglutination test (DAT) for titration of IgG antibodies specific to Leishmania spp. used a standard freeze-dried antigen at a concentration of 5 × 10 7 promastigotes per milliliter, following a predefined protocol. Two-fold dilution series ranging from 1:25 to 1:800 were tested, with a cut-off titre of 100 chosen for seropositivity. Four out of 102 cats (3.9%; 95% confidence interval [CI]: 1.1-9.7) had antibodies to T. gondii: one had a titer of 20, one a titer of 160, and two had a titer ≥ 2560. No cat (0.0%; CI: 0.0-3.5) was found seropositive for Leishmania spp. A statistically significant difference was found between T. gondii seroprevalence and Leishmania spp. seroprevalence (p = 0.043). The odds of a cat being seropositive to T. gondii increased by an average factor of 1.58 for each 1-year increase in age (p = 0.003). The sampled cats were well-cared animals and may not represent the overall feline population of Angola at the national and city levels. The fact that only 12 out of the 102 sampled cats ate or had access to raw or undercooked meat and/or viscera may have reduced the likelihood of finding seropositive results. Under these circumstances, additional studies, including a larger number of cats, are necessary for a more comprehensive assessment of the zoonotic risk posed by these animals in Angola.

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Seroepidemiology of Toxoplasma gondii, Neospora caninum, and Leishmania spp. infections and risk factors for cats from Brazil

Cited by 50 publications

References 28 publications

Serological detection of Toxoplasma gondii, Leishmania infantum and Neospora caninum in cats from an area endemic for leishmaniasis in Brazil

Serological detection of Toxoplasma gondii, Leishmania infantum and Neospora caninum in cats from an area endemic for leishmaniasis in Brazil

Survey of Leishmania Infantum Chagasi in Wild and Domestic Animals in Urban Area and Atlantic Rainforest Fragment in Northeast, Brazil

Antibodies to Toxoplasma gondii and Leishmania spp. in domestic cats from Luanda, Angola

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