Toxoplasma gondii and ovine toxoplasmosis: New aspects of an old story
| Autor: | Steve Wright, Stephen W. Maley, David Buxton, Paul M. Bartley, Elisabeth A. Innes, Susan Rodger |
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| Rok vydání: | 2007 |
| Předmět: |
Veterinary parasitology
biology.animal_breed Sheep Diseases Charollais sheep Pregnancy parasitic diseases medicine Genetic predisposition Animals Genetic Predisposition to Disease Fetus Sheep General Veterinary biology Incidence (epidemiology) Toxoplasma gondii General Medicine Abortion Veterinary medicine.disease biology.organism_classification Virology Toxoplasmosis Europe Toxoplasmosis Animal Pregnancy Complications Parasitic Immunology Female Parasitology Toxoplasma |
| Zdroj: | Veterinary Parasitology. 149:25-28 |
| ISSN: | 0304-4017 |
| DOI: | 10.1016/j.vetpar.2007.07.003 |
| Popis: | Ovine toxoplasmosis, caused by the intracellular protozoan parasite Toxoplasma gondii, was first described in 1954 and while the incidence of ovine infection is difficult to define, it has been reported that in the UK it is responsible for between 1 and 2% of neonatal losses per annum. Recent reports have suggested that sheep persistently infected with T. gondii may pass infection to the fetus in subsequent pregnancies more readily than previously thought. These data show a high proportion of both successful and failed pregnancies in sheep to be positive by PCR for T. gondii with a tendency for samples from certain genetic lines of Charollais sheep more likely to be positive than samples from other lines, suggesting that some sheep have a particular genetic susceptibility to T. gondii. |
| Databáze: | OpenAIRE |
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