Abstract
A retrospective study to estimate economic losses caused by livers condemnation, due to fascioliasis, of slaughtered cattle and buffaloes in Egypt during the period of 2016–2020, was done. Moreover, a morpho-molecular identification of collected liver flukes from slaughtered animals in municipal abattoirs was conducted. Livers of naturally infected carcasses were obtained from slaughtered animals in Beni-Suef, Cairo and Tanta provinces, Egypt during 2019–2020 for phenotypic characterization of recovered Fasciola species and molecular identification of collected worms using PCR targeting the ITS-1 region. Findings of the retrospective study revealed that percentages of livers condemnation of cattle and buffaloes ranged from 0.79 to 0.66% during the period from 2016 to 2020. The highest percentages were detected in the south Egypt (2.5–6.0%) with the highest economic losses (261850–616300 USD annually). Morphometrically, collected flukes categorized into Fasciola hepatica and Fasciola gigantica. No intermediate forms (Fasciola sp.-like) were detected. Sequencing analysis of ITS-1 PCR products showed that only Fasciola hepatica (26/34) and F. gigantica (8/34) isolates were found, with no intermediate forms, Fasciola sp.-like, could be identified. Currently, Fasciola hepatica was 100% identical with the Egyptian species (LC076196 and JF294998), French species (JF294999), and Iranian species (MF969009 and MK377150). Moreover, the obtained F. gigantica species showed 100% identity with Egyptian ones (LC076125, LC076108 and KX198619), Iranian (KF982047 and MF372919), and other GenBank specimens from Vietnam, Cameroon and India. In conclusion, South Egypt showed the highest economic losses due to fascioliasis, especially Aswan province. Fasciola hepatica was more common than F. gigantica, while the hybrid form was not detected.
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The datasets used and/or analyzed during the present study are available from the corresponding author upon reasonable request.
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Authors kindly acknowledge all veterinarians and authorities who facilitated gathering data and specimens collection.
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OR; samples collection, lab work, finding analysis, draft manuscript. WMA; designing, drafting manuscript, revising. ANW; drafting manuscript, KME; Designing, revising.
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Abdel‑Fatah, O.R., Arafa, W.M., Wahba, A.A. et al. Economic losses, morpho-molecular identification, and identity of Fasciola species recovered from Egypt. J Parasit Dis 46, 1036–1046 (2022). https://doi.org/10.1007/s12639-022-01526-x
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DOI: https://doi.org/10.1007/s12639-022-01526-x