Data/hora: 20/04/2024 10:41:54

Biblioteca(s): 	Embrapa Caprinos e Ovinos.	
Data corrente: 	07/07/2017	
Data da última atualização: 	07/07/2017	
Autoria: 	DUBEY, J. P.; KIRKBRIDE, C. A.	
Título: 	Enzootic toxoplasmosis in sheep in north-central United States.	
Ano de publicação: 	1989	
Fonte/Imprenta: 	The Journal of Parasitology, v. 75, n. 5, p. 673-676, Oct. 1989.	
Idioma: 	Inglês	
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.	
Palavras-Chave: 	Zygotes.	
Thesaurus Nal: 	Antibodies; Epidemiology; Ewes; Immunology; Infectious diseases; Parasitology; Sheep; Toxoplasmosis.	
Categoria do assunto: 	H Saúde e Patologia	
Registro original: 	Embrapa Caprinos e Ovinos (CNPC)	
Exemplares: 	CNPC - (34144-1) - ADD - AP - PP -  -  -  - DIS