Ocorrência de anticorpos anti-Toxoplasma gondii em ovinos das áreas urbanas e periurbanas de Curitiba, Paraná

Soccol, Vanete Thomaz; Castro, Edilene Alcântara de; Gazda, Tatiana Louise; Garcia, Guilherme; Richartz, R. R. T. B.; Dittrich, Rosângela Locatelli

doi:10.4322/rbpv.018e1013

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…Langoni et al (2011) found that the prevalence was 18.6% in the eastern region of São Paulo. In the metropolitan and periurban regions of Curitiba, Paraná, Soccol et al (2009) found that the incidence of infected animals was 25.75%. It was found, regarding age, that the population sampled consisted mainly of animals aged ≥ 13 months (65%).…”

Section: Resultsmentioning

confidence: 96%

Toxoplasma gondii antibodies sheep in Lages, Santa Catarina, Brazil, and comparison using IFA and ELISA

Sakata

Bellato

Sartor

et al. 2012

Rev. Bras. Parasitol. Vet.

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Toxoplasmosis in sheep is a disease of great importance in veterinary medicine, which causes economic losses in livestock and has a great impact on human health, since consumption of infected meat facilitates transmission of zoonotic infections. Blood samples from sheep (n = 360) were collected from 13 farm properties in the municipality of Lages, Santa Catarina, to estimate the prevalence of toxoplasmosis and identify risk factors associated with Toxoplasma gondii infection. T. gondii, antibodies were investigated by means of the indirect immunofluorescence assay (IFA) and enzyme-linked immunosorbent assay (ELISA). Animals infected with T. gondii were found on 100% of the farms. IFA detected 56.9% (205/360) and ELISA 42.5% of the infected sheep. Breed was the only risk factor associated with the presence of T. gondii antibodies. ELISA showed sensitivity of 61%, specificity of 82% and kappa of 0.41, which was considered moderate. This allows use of ELISA as an alternative technique for diagnosing T. gondii in sheep.

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Section: Resultsmentioning

confidence: 96%

Toxoplasma gondii antibodies sheep in Lages, Santa Catarina, Brazil, and comparison using IFA and ELISA

Sakata

Bellato

Sartor

et al. 2012

Rev. Bras. Parasitol. Vet.

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“…In the Paraná state, seroprevalence varies according to the region of the state investigated. Studies done in the regions of Jaguapitã, Londrina, Guarapuava, Umuarama, and Curitiba demonstrated that the T. gondii seroprevalence in sheep was 51.8%, 54.6%, 51.5%, 28,3% and 27.75%, respectively (Garcia et at., 1999;Ogawa et al, 2003;Romanelli et al, 2007;Sinhorini et al, 2017;Soccol et al, 2009). The frequency of infection is extremely high in other regions of Brazil.…”

Section: Resultsmentioning

confidence: 99%

“…In Uruguay, a study indicated that toxoplasmosis is an important sheep herd disease, causing annual losses of US$ 1.4 to 4.7 million (Freyre et al, 1997). In sheep, T. gondii tissue cysts can lodge in organs and tissues that are not detectable during slaughter (Garcia et al, 1999;Moura et al, 2007;Vismarra et al, 2017), thus making the consumption of this raw meat or undercooked meat an important transmission route in humans (Soccol et al, 2009).…”

Section: Toxoplasmamentioning

confidence: 99%

Soroprevalência de Toxoplasma gondii, Neospora caninum e Brucella abortus em ovinos de Toledo, Paraná, Brasil

Bertuzzi

Weschenfelder²,

Webber³

et al. 2022

Semina: Ciênc. Agrár.

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A toxoplasmose é uma doença cosmopolita, causada pelo Toxoplasma gondii, com grande importância no contexto de produção animal e saúde pública como evidenciado nos dois maiores surtos da doença que ocorreram nas cidades brasileiras de em Santa Izabel do Ivai-PR e Santa Maria-RS. Enquanto o Neospora caninum é o agente causador da neosporose e a Brucella spp. causadora da brucelose, duas das principais causas de falhas reprodutivas em ruminantes, ocasionando problemas como abortamento, e responsáveis por significativas perdas econômicas na ovinocultura brasileira. Considerando a escassez de dados disponíveis sobre o tema para a região estudada, o objetivo do presente estudo foi avaliar a soroprevalência de anticorpos contra T. gondii, N. caninum e B. abortus em ovinos do município de Toledo, Paraná, Brasil. Durante o período de agosto de 2017 a julho de 2018 foram visitadas 22 propriedades e coletadas 240 amostras de sangue de fêmeas e machos em idade reprodutiva. Para a detecção de anticorpos contra o T. gondii e N. caninum foi utilizada a técnica de Imunofluorescência Indireta empregando ponto de corte ≥64 e ≥50, respectivamente. Para a detecção de anticorpos contra B. abortus foi realizada a triagem com o Antígeno Acidificado Tamponado e confirmação das amostras reagentes com o teste de Soroaglutinação Lenta e do 2-Mercaptoetanol. Das amostras analisadas, 27,08% (65/240) apresentaram anticorpos contra o T. gondii, estes se encontravam distribuídas em 81,82% (18/22) das propriedades, para N. caninum observou-se uma prevalência de 15,41% (37/240), distribuídas em 68,18% (15/22) das propriedades. Quanto ao resultado dos testes da B. abortus todas as amostras foram consideradas negativas. O presente estudo mostrou que a grande maioria das propriedades apresentaram animais positivos para os protozoários, os quais, principalmente T. gondii, poderiam estar causando problemas de abortamentos. Estes dados epidemiológicos fornecem embasamento para programas estratégicos a fim de realizar medidas de monitoramento e controle, evitando perdas econômicas na ovinocultura.

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“…Seroprevalence of 33.8% for T. gondii was verified in Brazilian sheep (Lugoch et al, 2019). In Paraná state was observed a mean seroprevalence of 35.9% (7.0%-51.8%) in the last decades (Ogawa et al, 2003;Moura et al, 2007;Romanelli et al, 2007;Soccol et al, 2009;Gheller et al, 2016).…”

Section: Introductionmentioning

confidence: 80%

Anti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state, South Brazil: prevalence and associated factors

Romanelli

Matos

Ferreira

et al. 2021

Rev. Bras. Parasitol. Vet.

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The aim of this study was to evaluate the seroprevalence and factors associated with the presence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state. The detection of antibodies for T. gondii and N. caninum was performed by homemade and commercial indirect ELISA, respectively. Multiple logistic regression analysis was used to verify the factors associated with the seroprevalence. Antibodies anti-T. gondii and anti-N. caninum were observed in 42.7% and in 17.6% of the animals, respectively. The protective factors associated to seropositive were “some level of confinement” (full or semi-extensive confinement) (OR=0.53) for T. gondii and “use of skilled labor” (OR=0.64) for N. caninum. The risk factors were “presence of cats” (OR=1.75) for T. gondii and “feeding of dogs with sheep placental remains” (OR=1.79) for N. caninum. In addition, to presenting a significant and simultaneous seroprevalence for both agents (9.9% of the animals), the results also indicate that deficiencies in management and environmental sanitation, the presence of reservoirs, and types of exploitation enhance the seropositivity. Thus, studies like this might support sanitary programs and public policies for the prevention of T. gondii and N. caninum in the sheep herds of Paraná state.

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Ocorrência de anticorpos anti-Toxoplasma gondii em ovinos das áreas urbanas e periurbanas de Curitiba, Paraná

Cited by 11 publications

References 2 publications

Toxoplasma gondii antibodies sheep in Lages, Santa Catarina, Brazil, and comparison using IFA and ELISA

Toxoplasma gondii antibodies sheep in Lages, Santa Catarina, Brazil, and comparison using IFA and ELISA

Soroprevalência de Toxoplasma gondii, Neospora caninum e Brucella abortus em ovinos de Toledo, Paraná, Brasil

Anti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state, South Brazil: prevalence and associated factors

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