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Genotyping of Toxoplasma gondii from Rats (Rattus rattus) in Riyadh, Saudi Arabia
The Korean Journal of Parasitology ; : 257-261, 2014.
Article in English | WPRIM | ID: wpr-207960
ABSTRACT
Toxoplasma 3 main clonal lineages are designated as type I, II, and III; however, atypical and mixed genotypes were also reported. This study was conducted for detection of Toxoplasma gondii genotypes in rats (Rattus rattus) in Riyadh region, Saudi Arabia. PCR test on T. gondii B1 gene was conducted on ELISA IgM positive samples for confirmation of the infection. However, genetic analysis of the SAG2 locus was performed to determine T. gondii genotypes using PCR-RFLP technique. PCR test on T. gondii B1gene showed that 22 (81.5%) out of the 27 ELISA IgM positive samples have T. gondii DNA. Genotypic analysis shows that, of the total 22 PCR positive samples, only 13 (59.1%) were of type II, 7 (31.8%) were of type III, and 2 (9.1%) were of an unknown genotype. It is obvious that the prevalence of both type II and III is high in rats. No reports have been available on T. gondii genotypes among rats in Riyadh region, and only little is known about its seroprevalence in rats. Future studies on T. gondii genotypes in rats using multi-locus markers is needed in Riyadh region, Saudi Arabia for better understanding of T. gondii pathogenesis and treatment in humans and animals.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Rodent Diseases / Saudi Arabia / Toxoplasma / Polymorphism, Restriction Fragment Length / Toxoplasmosis, Animal / Polymerase Chain Reaction / Prevalence / Molecular Epidemiology / Genotyping Techniques / Genotype Type of study: Prevalence study Limits: Animals Country/Region as subject: Asia Language: English Journal: The Korean Journal of Parasitology Year: 2014 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Rodent Diseases / Saudi Arabia / Toxoplasma / Polymorphism, Restriction Fragment Length / Toxoplasmosis, Animal / Polymerase Chain Reaction / Prevalence / Molecular Epidemiology / Genotyping Techniques / Genotype Type of study: Prevalence study Limits: Animals Country/Region as subject: Asia Language: English Journal: The Korean Journal of Parasitology Year: 2014 Type: Article