Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran
Background. Human toxocariasis (HT) is a zoonotic disease with a global expansion. Contaminated soil with Toxocara spp. eggs is the main source of human infection, which may lead to severe complications depending on the organs invaded by migrating larvae. Aim. This study is aimed at eliciting the pr...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Journal of Parasitology Research |
| Online Access: | http://dx.doi.org/10.1155/2024/2132696 |
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| author | Siavash Liravizadeh Samaneh Abdolahi Khabisi Alireza Salimi Khorashad Hadi Mirahmadi |
| author_facet | Siavash Liravizadeh Samaneh Abdolahi Khabisi Alireza Salimi Khorashad Hadi Mirahmadi |
| author_sort | Siavash Liravizadeh |
| collection | DOAJ |
| description | Background. Human toxocariasis (HT) is a zoonotic disease with a global expansion. Contaminated soil with Toxocara spp. eggs is the main source of human infection, which may lead to severe complications depending on the organs invaded by migrating larvae. Aim. This study is aimed at eliciting the prevalence of Toxocara spp. eggs in public parks in Zahedan, southeast Iran, and providing new insight into the soil contamination rate in this area using microscopic and molecular methods. Methods. Based on five municipal districts, 240 soil samples were collected from public parks and playgrounds in Zahedan. The modified Sheather’s flotation technique was employed to isolate Toxocara spp. eggs from the soil, followed by microscopic assessment and molecular evaluation of internal transcribed spacer 1 and 2 ribosomal deoxyribonucleic acid (ITS1 and 2 rDNA) using nested polymerase chain reaction (nested PCR) to identify the presence of Toxocara spp. eggs. The Sanger sequence was used to differentiate the Toxocara species. Subsequently, all the sequenced data were blasted and compared with other sequences available in the GenBank. Results. Out of 240 soil samples collected, 7 (2.9%) samples were identified to contain Toxocara spp. eggs using Sheather’s flotation and microscopic techniques. Meanwhile, 19 (7.9%) samples were positive using nested PCR. According to the Sanger sequencing analysis findings, all positive samples were contaminated with Toxocara cati. Conclusion. As evidenced by the obtained results, only T. cati species were detected in public parks and playgrounds in Zahedan; therefore, control and prevention programs against this species should be considered in human and animal communities. |
| format | Article |
| id | doaj-art-cd426d9d6e28428492ca59cdbdbcd89a |
| institution | Kabale University |
| issn | 2090-0031 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Parasitology Research |
| spelling | doaj-art-cd426d9d6e28428492ca59cdbdbcd89a2025-02-03T06:15:14ZengWileyJournal of Parasitology Research2090-00312024-01-01202410.1155/2024/2132696Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast IranSiavash Liravizadeh0Samaneh Abdolahi Khabisi1Alireza Salimi Khorashad2Hadi Mirahmadi3Department of Parasitology and MycologyDepartment of Parasitology and MycologyDepartment of Parasitology and MycologyDepartment of Parasitology and MycologyBackground. Human toxocariasis (HT) is a zoonotic disease with a global expansion. Contaminated soil with Toxocara spp. eggs is the main source of human infection, which may lead to severe complications depending on the organs invaded by migrating larvae. Aim. This study is aimed at eliciting the prevalence of Toxocara spp. eggs in public parks in Zahedan, southeast Iran, and providing new insight into the soil contamination rate in this area using microscopic and molecular methods. Methods. Based on five municipal districts, 240 soil samples were collected from public parks and playgrounds in Zahedan. The modified Sheather’s flotation technique was employed to isolate Toxocara spp. eggs from the soil, followed by microscopic assessment and molecular evaluation of internal transcribed spacer 1 and 2 ribosomal deoxyribonucleic acid (ITS1 and 2 rDNA) using nested polymerase chain reaction (nested PCR) to identify the presence of Toxocara spp. eggs. The Sanger sequence was used to differentiate the Toxocara species. Subsequently, all the sequenced data were blasted and compared with other sequences available in the GenBank. Results. Out of 240 soil samples collected, 7 (2.9%) samples were identified to contain Toxocara spp. eggs using Sheather’s flotation and microscopic techniques. Meanwhile, 19 (7.9%) samples were positive using nested PCR. According to the Sanger sequencing analysis findings, all positive samples were contaminated with Toxocara cati. Conclusion. As evidenced by the obtained results, only T. cati species were detected in public parks and playgrounds in Zahedan; therefore, control and prevention programs against this species should be considered in human and animal communities.http://dx.doi.org/10.1155/2024/2132696 |
| spellingShingle | Siavash Liravizadeh Samaneh Abdolahi Khabisi Alireza Salimi Khorashad Hadi Mirahmadi Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran Journal of Parasitology Research |
| title | Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran |
| title_full | Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran |
| title_fullStr | Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran |
| title_full_unstemmed | Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran |
| title_short | Molecular Determination of Toxocara spp. Eggs Isolated from Public Parks and Playgrounds in Zahedan, Southeast Iran |
| title_sort | molecular determination of toxocara spp eggs isolated from public parks and playgrounds in zahedan southeast iran |
| url | http://dx.doi.org/10.1155/2024/2132696 |
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