Antibodies to Toxoplasma gondii were assayed in sera of 63 cats and 80 pigs from 71 farms located at Rondônia State, Western Amazon, Brazil, by the modified agglutination test (MAT) and the indirect immunofluorescent antibody test (IFAT). Antibodies (MAT ≥ 1: 25) were found in 55 of 63 cats (87.3%) with titers of 1:25 in 2, 1:50 in 2, 1:100 in 7, 1:200 in 1, 1:400 in 2, 1:800 in 9, 1:1,600 in 6, and 1:3,200 or higher in 26 cats. By IFAT, antibodies were found in 55 cats (87.3%) with titers of 1:25 in 2, 1:50 in 1, 1:100 in 4, 1:200 in 4, 1: 400 in 1, 1:800 in 13, 1:1,600 in 12, and 1:3,200 or higher in 18 cats. In pig sera, by MAT, antibodies were found in 30 of 80 pigs (37.5%) with titers of 1:25 in 2, 1:50 in 3, 1:100 in 2, 1:200 in 8, 1:400 in 3, 1:800 in 5, 1:1,600 in 3, and 1:3,200 or higher in 4 pigs. By using the IFAT (titers ≥ 1:64), antibodies were found in 35 (43.7%) pigs. The ingestion of undercooked tissues of infected pigs can be a source of T. gondii infection for humans and cats. However, the high seroprevalence of T. gondii in cats from the Amazon seems most likely to be indicative of high contamination of the environment by oocysts.
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August 2006
Research Article|
August 01 2006
Seroprevalence of Toxoplasma gondii Antibodies in Cats and Pigs From Rural Western Amazon, Brazil
G. T. Cavalcante;
G. T. Cavalcante
aNúcleo Avançado de Pesquisas, Departamento de Parasitologia, Instituto de Ciências Biomédicas V, Universidade de São Paulo, Rua Francisco Prestes 1234, Monte Negro—Rondônia, CEP 78965-000, Brazil
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D. M. Aguiar;
D. M. Aguiar
aNúcleo Avançado de Pesquisas, Departamento de Parasitologia, Instituto de Ciências Biomédicas V, Universidade de São Paulo, Rua Francisco Prestes 1234, Monte Negro—Rondônia, CEP 78965-000, Brazil
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D. Chiebao;
D. Chiebao
bDepartamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando, Marques de Paiva, 87,Cidade Universitária, São Paulo—SP, CEP 05508-000, Brazil
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J. P. Dubey;
J. P. Dubey
cUnited States Department of Agriculture, Agricultural Research Service, Animal and Natural Resources Institute, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
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V. L A. Ruiz;
V. L A. Ruiz
bDepartamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando, Marques de Paiva, 87,Cidade Universitária, São Paulo—SP, CEP 05508-000, Brazil
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R. A. Dias;
R. A. Dias
bDepartamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando, Marques de Paiva, 87,Cidade Universitária, São Paulo—SP, CEP 05508-000, Brazil
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L. M A. Camargo;
L. M A. Camargo
aNúcleo Avançado de Pesquisas, Departamento de Parasitologia, Instituto de Ciências Biomédicas V, Universidade de São Paulo, Rua Francisco Prestes 1234, Monte Negro—Rondônia, CEP 78965-000, Brazil
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M. B. Labruna;
M. B. Labruna
bDepartamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando, Marques de Paiva, 87,Cidade Universitária, São Paulo—SP, CEP 05508-000, Brazil
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S. M. Gennari
S. M. Gennari
bDepartamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando, Marques de Paiva, 87,Cidade Universitária, São Paulo—SP, CEP 05508-000, Brazil
dTo whom correspondence should be addressed. sgennari@usp.br
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J Parasitol (2006) 92 (4): 863–864.
Citation
G. T. Cavalcante, D. M. Aguiar, D. Chiebao, J. P. Dubey, V. L A. Ruiz, R. A. Dias, L. M A. Camargo, M. B. Labruna, S. M. Gennari; Seroprevalence of Toxoplasma gondii Antibodies in Cats and Pigs From Rural Western Amazon, Brazil. J Parasitol 1 August 2006; 92 (4): 863–864. doi: https://doi.org/10.1645/GE-830R.1
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