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Frequency of different genotypes of Giardia duodenalis in slaughtered sheep and goat in east of iran

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Abstract

Giardia duodenalis is one of the most common and important protozoan parasites of the gastrointestinal tract in humans and animals, especially in developing countries. The purpose of this study was determining prevalence of Giardia genotypes specially zoonosis genotypes in sheep and goat in eastern of iran slaughterers.This cross-sectional study was conducted during April to November 2019. 300 fecal samples were collected from the rectum of sheep and goats. The samples were subjected to DNA extraction after sucrose gradient purification. A fragment of the glutamate dehydrogenase gene (gdh) was amplified by semi-nested PCR and genotype diagnosis was performed by digestion of the secondary PCR product with restriction enzymes RsaI and Nla IV. The prevalence of Giardia was found as (274/300) by the molecular method. Restriction endonuclease digestion of the nested-PCR product showed; among 274 positive isolates, 95 were typed as assemblage E, 15 as assemblage B, 87 assemblage AI, 45 assemblage AII, and 32 assemblege C. In this study, frequency of different assemblages of G. duodenalis was determined in sheep and goats by gdh gene and PCR-RFLP method. Same of other studies, assemblage E was dominant genotype in sheep and goats. Isolation of zoonotic assemblages as AI, AII, and BIII showed that sheep and goats should be considered as a source for human infection.

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Acknowledgements

The authors would like to express their gratitude to Mr. shafaee for her useful collaboration.

Funding

We did not receive any grants for the publication of this study.

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Authors and Affiliations

  1. Department of Parasitology and Mycology, School of Medicine, Kerman University of Medical Science, Kerman, Iran

    Ashkan Faridi & Nima Firouzeh

  2. Infectious Disease Research Center, Birjand University of Medical Sciences, Birjand, Iran

    Amir Tavakoli Kareshk

  3. Department of Parasitology and Mycology, School of Medicine, Mashhad University of Medical Science, Mashhad, Iran

    Saeed Sadooghian

Authors
  1. Ashkan Faridi
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  2. Amir Tavakoli Kareshk
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  3. Saeed Sadooghian
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  4. Nima Firouzeh
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Contributions

All authors contributed to the study design. ATK was leader of the research. AF, SS and NF carried out experimental tests and prepared the Manuscript. All authors read and approved the final version of the manuscript.

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Correspondence to Amir Tavakoli Kareshk.

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Faridi, A., Tavakoli Kareshk, A., Sadooghian, S. et al. Frequency of different genotypes of Giardia duodenalis in slaughtered sheep and goat in east of iran. J Parasit Dis 44, 618–624 (2020). https://doi.org/10.1007/s12639-020-01237-1

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  • DOI: https://doi.org/10.1007/s12639-020-01237-1

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