High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão
Abstract A serological, molecular and histopathological study was carried out in order to investigate occurrences of Toxoplasma gondii in pigs slaughtered with and without inspection service. Serum samples were collected from 60 pigs to detect anti-T. gondii antibody by indirect fluorescent antibody (IFAT). Tongue, masseter and diaphragm fragments were also collected for parasite DNA detection by means of the polymerase chain reaction (PCR) and histopathological analysis. The serological results showed that 77% (44/60) of the pigs were positive. Regarding PCR, 66.67% (40/60) were positive for T. gondii. Among the tissues evaluated, the diaphragm was the one with the highest frequency of positivity (40%; 24/60), followed by the masseter (38.33%; 23/60) and tongue (33.3%; 20/60). Histopathological changes were only observed in the diaphragm, which presented inflammatory infiltrates of lymphohistiocytic and neutrophilic types. These results not only show the potential threat of T. gondii to human health, but also demonstrate the dynamic epidemiological situation of toxoplasmosis in pigs in the city of São Luís, providing support for food security regarding pigs and for T. gondii control programs in Brazil.
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Colégio Brasileiro de Parasitologia Veterinária
2021
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oai:scielo:S1984-296120210004003032021-11-11High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, MaranhãoSilva,Ellainy Maria ConceiçãoSousa,Pablo dos SantosCarvalho,Scarleth Kevia Gomes Silva deMarques,Ingrid Carolinne LopesCosta,Francisco BorgesCosta,Andrea Pereira daSantos,Larissa Sarmento dosBraga,Maria do Socorro Costa OliveiraAbreu-Silva,Ana LúciaMachado,Rosangela ZacariasCarvalho Neta,Alcina Vieira de Pigs zoonosis toxoplasmosis public health Abstract A serological, molecular and histopathological study was carried out in order to investigate occurrences of Toxoplasma gondii in pigs slaughtered with and without inspection service. Serum samples were collected from 60 pigs to detect anti-T. gondii antibody by indirect fluorescent antibody (IFAT). Tongue, masseter and diaphragm fragments were also collected for parasite DNA detection by means of the polymerase chain reaction (PCR) and histopathological analysis. The serological results showed that 77% (44/60) of the pigs were positive. Regarding PCR, 66.67% (40/60) were positive for T. gondii. Among the tissues evaluated, the diaphragm was the one with the highest frequency of positivity (40%; 24/60), followed by the masseter (38.33%; 23/60) and tongue (33.3%; 20/60). Histopathological changes were only observed in the diaphragm, which presented inflammatory infiltrates of lymphohistiocytic and neutrophilic types. These results not only show the potential threat of T. gondii to human health, but also demonstrate the dynamic epidemiological situation of toxoplasmosis in pigs in the city of São Luís, providing support for food security regarding pigs and for T. gondii control programs in Brazil.info:eu-repo/semantics/openAccessColégio Brasileiro de Parasitologia VeterináriaRevista Brasileira de Parasitologia Veterinária v.30 n.4 20212021-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612021000400303en10.1590/s1984-29612021086 |
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Silva,Ellainy Maria Conceição Sousa,Pablo dos Santos Carvalho,Scarleth Kevia Gomes Silva de Marques,Ingrid Carolinne Lopes Costa,Francisco Borges Costa,Andrea Pereira da Santos,Larissa Sarmento dos Braga,Maria do Socorro Costa Oliveira Abreu-Silva,Ana Lúcia Machado,Rosangela Zacarias Carvalho Neta,Alcina Vieira de |
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Silva,Ellainy Maria Conceição Sousa,Pablo dos Santos Carvalho,Scarleth Kevia Gomes Silva de Marques,Ingrid Carolinne Lopes Costa,Francisco Borges Costa,Andrea Pereira da Santos,Larissa Sarmento dos Braga,Maria do Socorro Costa Oliveira Abreu-Silva,Ana Lúcia Machado,Rosangela Zacarias Carvalho Neta,Alcina Vieira de High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
author_facet |
Silva,Ellainy Maria Conceição Sousa,Pablo dos Santos Carvalho,Scarleth Kevia Gomes Silva de Marques,Ingrid Carolinne Lopes Costa,Francisco Borges Costa,Andrea Pereira da Santos,Larissa Sarmento dos Braga,Maria do Socorro Costa Oliveira Abreu-Silva,Ana Lúcia Machado,Rosangela Zacarias Carvalho Neta,Alcina Vieira de |
author_sort |
Silva,Ellainy Maria Conceição |
title |
High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
title_short |
High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
title_full |
High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
title_fullStr |
High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
title_full_unstemmed |
High level of infection by Toxoplasma gondii in pigs slaughtered in the city of São Luís, Maranhão |
title_sort |
high level of infection by toxoplasma gondii in pigs slaughtered in the city of são luís, maranhão |
description |
Abstract A serological, molecular and histopathological study was carried out in order to investigate occurrences of Toxoplasma gondii in pigs slaughtered with and without inspection service. Serum samples were collected from 60 pigs to detect anti-T. gondii antibody by indirect fluorescent antibody (IFAT). Tongue, masseter and diaphragm fragments were also collected for parasite DNA detection by means of the polymerase chain reaction (PCR) and histopathological analysis. The serological results showed that 77% (44/60) of the pigs were positive. Regarding PCR, 66.67% (40/60) were positive for T. gondii. Among the tissues evaluated, the diaphragm was the one with the highest frequency of positivity (40%; 24/60), followed by the masseter (38.33%; 23/60) and tongue (33.3%; 20/60). Histopathological changes were only observed in the diaphragm, which presented inflammatory infiltrates of lymphohistiocytic and neutrophilic types. These results not only show the potential threat of T. gondii to human health, but also demonstrate the dynamic epidemiological situation of toxoplasmosis in pigs in the city of São Luís, providing support for food security regarding pigs and for T. gondii control programs in Brazil. |
publisher |
Colégio Brasileiro de Parasitologia Veterinária |
publishDate |
2021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612021000400303 |
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