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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
07/07/2017 |
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Data da última atualização: |
07/07/2017 |
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Autoria: |
DUBEY, J. P.; KIRKBRIDE, C. A. |
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Título: |
Enzootic toxoplasmosis in sheep in north-central United States. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
The Journal of Parasitology, v. 75, n. 5, p. 673-676, Oct. 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Of 1,564 serum samples from adult ewes from 33 farms in Iowa, Minnesota, South Dakota, Kansas, and Nebraska where toxoplasmosis-induced ovine abortions had been diagnosed, 65.5% were found positive for Toxoplasma gondii antibodies using the modified agglutination test. Toxoplasma gondii antibody titers of ewes were: <64 (34.5%), 64 (14.9%), 256 (22.0%), 1,024 (14.5%), and >4,096 (13.8%). Thus, 28.3% of sheep had high titers (>1,024) indicating recently acquired T. gondii infection. On certain farms, up to 95% of ewes were seropositive. Prevalence of T. gondii antibodies increased with age of the ewe. Of 665 ewes, 53.6% of 1-yr-old ewes were seropositive (titers > 64) versus 75% of 5-yr-old ewes. Results indicate that T. gondii infection in sheep in the United States is widespread. |
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Palavras-Chave: |
Zygotes. |
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Thesaurus Nal: |
Antibodies; Epidemiology; Ewes; Immunology; Infectious diseases; Parasitology; Sheep; Toxoplasmosis. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01437naa a2200241 a 4500
001 2072246
005 2017-07-07
008 1989 bl uuuu u00u1 u #d
100 1 $aDUBEY, J. P.
245 $aEnzootic toxoplasmosis in sheep in north-central United States.
260 $c1989
520 $aAbstract: Of 1,564 serum samples from adult ewes from 33 farms in Iowa, Minnesota, South Dakota, Kansas, and Nebraska where toxoplasmosis-induced ovine abortions had been diagnosed, 65.5% were found positive for Toxoplasma gondii antibodies using the modified agglutination test. Toxoplasma gondii antibody titers of ewes were: <64 (34.5%), 64 (14.9%), 256 (22.0%), 1,024 (14.5%), and >4,096 (13.8%). Thus, 28.3% of sheep had high titers (>1,024) indicating recently acquired T. gondii infection. On certain farms, up to 95% of ewes were seropositive. Prevalence of T. gondii antibodies increased with age of the ewe. Of 665 ewes, 53.6% of 1-yr-old ewes were seropositive (titers > 64) versus 75% of 5-yr-old ewes. Results indicate that T. gondii infection in sheep in the United States is widespread.
650 $aAntibodies
650 $aEpidemiology
650 $aEwes
650 $aImmunology
650 $aInfectious diseases
650 $aParasitology
650 $aSheep
650 $aToxoplasmosis
653 $aZygotes
700 1 $aKIRKBRIDE, C. A.
773 $tThe Journal of Parasitology$gv. 75, n. 5, p. 673-676, Oct. 1989.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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