A Systematic Review of Toxoplasma gondii Genotypes and Feline: Geographical Distribution Trends

Amouei, Afsaneh and Sarvi, S and Sharif, M and Aghayan, SA and Javidnia, J and Javidnia, A and Moosazadeh, M and Shams, N and Hosseini, SA and Hosseininejad, Z and Nayeri Chegeni, T and Badali, H and Daryani, A (2019) A Systematic Review of Toxoplasma gondii Genotypes and Feline: Geographical Distribution Trends. Transbound Emerg Dis.

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Official URL: https://onlinelibrary.wiley.com/doi/abs/10.1111/tb...

Abstract

Toxoplasma gondii (T. gondii) is well-known for its ability to virtually infects all warm-blooded vertebrates. Although felines as the definitive hosts have an important role in the epidemiology of toxoplasmosis, there are few descriptions of genetic diversity in the world. The present review study aimed to describe the population structure of T. gondii in these animal species. For the purpose of the study, five English language databases reporting data on T. gondii genotyping in cats were searched within March-June 2019. This study is registered on the site of CAMARADES-NC3Rs (15-Jan-2018). The searching process resulted in the inclusion of 50 reports published from 1992 to June 2019. The data revealed that 47,390 samples were genotyped into 662 T. gondii DNA/isolates. Globally, atypical genotypes were predominant (47.7%, n=316); in addition, Type II clonal strains were the second most common genotype (37%, n=244). These results suggested an epidemic population structure in America and Asia, and a clonal population structure in Europe and Africa. Genotype #3 was found to be dominant in Africa, Europe, and Oceania continents. Furthermore, genotypes #9 and #5 were prevalent in Asia and America, respectively. Additionally, genotypes #2, #3, #5, and #20 were common genotypes in domestic and sylvatic cycles from family Felidae. Collectively, this systematic review indicated a large degree of genetic diversity and circulation of mouse-virulent T. gondii strains in this family. However, further studies are necessary to better understand the population structure of T. gondii in these animal species and determine the significance of their features

Item Type: Article
Subjects: R Medicine > RZ Other systems of medicine
Divisions: Faculty of Medicine, Health and Life Sciences > School of Medicine
Depositing User: samira sepahvandy
Date Deposited: 08 Sep 2019 03:52
Last Modified: 08 Sep 2019 03:52
URI: http://eprints.lums.ac.ir/id/eprint/1801

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