Seroprevalence and risk factors for Toxoplasma gondii infection in pigs in southern Piauí

Sousa, Richard Átila de; Lemos, Jezlon da Fonseca; Farias, Leonardo Atta; Lopes, Carla D.; Santos, Karina Rodrigues dos

doi:10.1590/s1984-29612014015

Cited by 21 publications

(13 citation statements)

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“…Analysis on the risk factors associated with T. gondii infection is important when the main purpose is to adopt control measures and prophylaxis against swine toxoplasmosis. In the present study, there was a significant difference between the genders regarding seropositivity, since the female sex was (39.88% for male and 60.12% for female) associated with higher seroreactivity for T. gondii, corroborating previous studies (BONNA et al, 2006;MILLAR et al, 2008;BEZERRA et al, 2009;SOUSA et al, 2014) However, this association may probably occur due to a sample bias instead of a sex related susceptibility (SILVA et al, 2010).…”

Section: Discussionsupporting

confidence: 91%

“…It is known that age is an important risk factor, since T. gondii seroprevalence increases along with the animal's age due to a longer exposure to a contaminated environment (SOUSA et al, 2014;ISHAKU et al, 2018). However, in this study, age was not shown to be a risk factor associated with the presence of anti-T. gondii antibodies, thus corroborating some previous studies (LUCIANO et al, 2011;MILLAR et al 2008).…”

Section: Discussionsupporting

confidence: 89%

“…Studies on frequency of antibodies for T. gondii among pigs in Brazil have indicated that the seropositivity rates are between 7.64% and 43.1% in farms with different production systems (MOURA et al, 2007;MILLAR, et al, 2008;MURARO et al, 2010;LUCIANO et al, 2011;CORRÊA et al, 1978;CAVALCANTE et al, 2006;SAMICO FERNANDES et al, 2012;SOUSA et al, 2014;AZEVEDO et al, 2010). Accordingly, IFA was the serological technique used in the aforementioned studies.…”

Section: Discussionmentioning

confidence: 99%

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Frequency of antibodies and risk factors associated with Toxoplasma gondii infection in backyard pig production in the city of Mossoró, state of Rio Grande do Norte, Brazil

Santos

Leite

Furquim

et al. 2019

Rev. Bras. Parasitol. Vet.

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Toxoplasmosis is an important zoonosis for pregnant women and immunosuppressed people. The pig population also becomes infected by this pathogen, and undercooked or raw meat is an important source of infection for humans. The aims of the present study were to evaluate the rate of exposure of pigs to T. gondii in the municipality of Mossoró, Rio Grande do Norte and seek to identify associations with possible risk factors. Blood samples were collected from 412 pigs and were analyzed using the immunofluorescence assay. Among these 412 serum samples, 40.7% were seropositive for T. gondii. The IgG antibody titers were 64 (56 specimens), 128 (32), 256 (37), 512 (23), 1024 (14), 2048 (5) and 4046 (1). Seropositivity for T. gondii was found to be related (p-value < 0.05) to the following factors: female gender, semi-confined rearing system, use of well water, dewormed animals, presence of cats, goats, sheep, mice and vultures on the farm and carcasses left on the ground. In contrast, seropositivity was not related (p-value < 0.05) to the age of the pigs, type of facility or feeding with human food remains. Preventive measures need to be adopted on the farms studied here, with the aim of decreasing the animals’ intake of sporulated oocysts.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

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Frequency of antibodies and risk factors associated with Toxoplasma gondii infection in backyard pig production in the city of Mossoró, state of Rio Grande do Norte, Brazil

Santos

Leite

Furquim

et al. 2019

Rev. Bras. Parasitol. Vet.

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“…Toxoplasma gondii is an important zoonotic intracellular apicomplexan protozoan that can infect humans and nearly all warm-blooded animals worldwide (DUBEY, 2010;MONTOYA & LIESENFELD, 2004;TENTER et al, 2000;SOUSA et al, 2014;CERRO et al, 2014;BARROS et al, 2014). Humans and animals can be infected mainly through the ingestion of tissue cysts from undercooked or raw meat or through the consumption of food or water contaminated with sporulated oocysts shed by infected felids (KIJLSTRA & JONGERT, 2008).…”

Section: Introductionmentioning

confidence: 99%

The prevalence of antibodies to Toxoplasma gondii in horses in Changji Hui Autonomous Prefecture, Xinjiang, northwestern China

Wang

Zhou

Chen

et al. 2015

Rev. Bras. Parasitol. Vet.

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Toxoplasmosis is a worldwide zoonosis caused by Toxoplasma gondii, which can infect warm-blooded animals and humans. The present study was performed to investigate the seroprevalence of T. gondii in horses in Xinjiang, northwestern China. A total of 637 blood samples were collected from seven regions in Changji Hui Autonomous Prefecture, Xinjiang in 2011 and assayed for T. gondii antibodies using the modified agglutination test (MAT). Risk factors (age, gender, and region) related to seroprevalence were determined by a multivariate logistic regression analysis. A total of 200 horses (31.4%, 95% CI 27.79-35.00) were seropositive for T. gondii. Age, gender, and region present no association with seroprevalence (p>0.05) in the logistic regression analysis. The results indicated that T. gondii is widely prevalent in horses in Xinjiang, northwestern China, representing a serious threat to animal and human health. Therefore, more careful measures should be performed to control and prevent T. gondii infection in horses from Xinjiang, northwestern China.Keywords: Toxoplasma gondii, horse, seroprevalence, modified agglutination test (MAT), China. ResumoA toxoplasmose é uma zoonose global causada pelo Toxoplasma gondii, o qual pode infectar animais de sangue quente e seres humanos. Este estudo foi realizado com o objetivo de investigar a soroprevalência em cavalos para T. gondii, na região de Xinjiang, no Noroeste da China. Em 2011, foram recolhidas 637 amostras de sangue em sete distritos da Prefeitura Autônoma de Changji Hui do Xinjiang, as quais foram testadas para a presença de anticorpos, utilizando-se o teste de aglutinação modificado (MAT). Foram estimados fatores de risco relacionados com a soroprevalência (idade, sexo e distrito), através de uma análise de regressão logística multivariada. Um total de 200 equinos (31,4%, 95% IC 27,79 -35,00) foi positivo para T. gondii. Idade, sexo e região estudada não apresentaram associação com a soroprevalência (p>0,05) na análise de regressão logística. Os resultados revelam que a infecção por T. gondii tem uma prevalência generalizada em todo o território de Xinjiang, no Noroeste da China, constituindo uma séria ameaça à saúde de animais e de humanos. Consequentemente, propõe-se que sejam adotadas medidas reforçadas para o controle e prevenção da infecção de cavalos por T. gondii, no Xinjiang, Noroeste da China.Palavras-chave: Toxoplasma gondii, cavalo, soroprevalência, teste de aglutinação modificado (MAT), China.

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“…Viable forms of the parasite have been isolated from a great variety of meat products and serological studies in Brazil showed a wide distribution of this infection in pigs (Bonna et al 2006, Millar et al 2008, Muraro et al 2010, Azevedo et al 2010, Valença et al 2011, Sousa et al 2014.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Toxoplasma gondii and risk factors for infection in pigs raised and slaughtered in the Triângulo Mineiro region, Minas Gerais, Brazil

Marques-Santos

Amendoeira²,

Carrijo

et al. 2017

Pesq. Vet. Bras.

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The Triângulo Mineiro region from Minas Gerais state, is an important meat-exporting region of Brazil and data about Toxoplasma gondii infection in pigs raised and slaughtered in this area are scarce. Therefore, the aim of this study was to evaluate the occurrence of T. gondii in swine and establish the risk factors associated with the infection. Samples were collected from 600 pigs raised under intensive system in farms located at three different counties (Carmo do Paranaíba, Patrocínio and Perdizes). The samples were submitted to indirect hemagglutination antibody test with dilution of 1:32 and to indirect immunofluorescence antibody test with a cutoff of 1:64. The occurrence of positive pig was 3.3% (n=20) and 51.8% (n=311) respectively. A significant difference was observed between toxoplasmatic infection and factors such as lineage, animal origin, size of the farm, collective raising with others species, presence of rodents and type of water offered (p≤0.05). There was no difference between gender and the farm goals. The results demonstrated an occurrence of anti-T. gondii antibodies higher than expected for intensive pig raising system on the studied area, which could indicate a possible sanitary management problem on the studied proprieties. Improvements on the raising techniques are necessary to reduce T. gondii infection sources.

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Seroprevalence and risk factors for Toxoplasma gondii infection in pigs in southern Piauí

Cited by 21 publications

References 11 publications

Frequency of antibodies and risk factors associated with Toxoplasma gondii infection in backyard pig production in the city of Mossoró, state of Rio Grande do Norte, Brazil

Frequency of antibodies and risk factors associated with Toxoplasma gondii infection in backyard pig production in the city of Mossoró, state of Rio Grande do Norte, Brazil

The prevalence of antibodies to Toxoplasma gondii in horses in Changji Hui Autonomous Prefecture, Xinjiang, northwestern China

Occurrence of Toxoplasma gondii and risk factors for infection in pigs raised and slaughtered in the Triângulo Mineiro region, Minas Gerais, Brazil

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