Fish-borne trematode infections in wild fishes in Bangladesh

Labony, Sharmin Shahid; Alim, Md. Abdul; Hasan, Muhammad Mehedi; Hossain, Shahadat; Islam, Ariful; Alam, Mohammad Zahangir; Tsuji, Naotoshi; Anisuzzaman, Anisuzzaman

doi:10.1080/20477724.2020.1727217

Cited by 17 publications

(21 citation statements)

References 28 publications

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“…The flukes eat off the mucosal tissues, therefore, petechial hemorrhages are not unexpected. Infiltration of eosinophils is a common feature in helminth infection ( Anisuzzaman et al., 2005 , 2020 ) and in ectoparasitic infestations ( Anisuzzaman et al., 2014 ).…”

Section: Resultsmentioning

confidence: 99%

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Research Note: Genetic analysis, pathology, and vectors of echinostomiasis, a zoonotic helminth infection in chickens in Bangladesh

et al. 2022

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Section: Resultsmentioning

confidence: 99%

“…Digested fishes were examined under a microscope (Labomed, Los Angeles, CA) using a 10 X objective. Each sample was examined at least in triplicate as described previously ( Labony et al., 2020 ).…”

Section: Methodsmentioning

confidence: 99%

Research Note: Genetic analysis, pathology, and vectors of echinostomiasis, a zoonotic helminth infection in chickens in Bangladesh

et al. 2022

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“…Parasitic infections in fish reduce the quality and quantity of production and thus the economic value of the fish. The aquaculture and fish industries have been significantly threatened by digenetic trematode infections (Labony et al, 2020). Apart from its drastic effect on fish health, it also has adverse effects on fish marketing as well as presenting a prominent health hazard among fish consumers (Aly et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Encysted metacercariae constitute one of the major larval trematodes causes of parasitic diseases in fish (Salem et al, 2021). Fish-borne zoonotic trematodes (FBZT) are an emerging and rapidly growing concern in developing countries due to associated economic losses and public health concerns (Labony et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Epidemiological study of fish‐borne zoonotic trematodes infecting Nile tilapia with first molecular characterization of two heterophyid flukes

Mahdy

Abdel-Maogood

Abdelsalam

et al. 2021

Aquaculture Research

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Fish‐borne zoonotic trematodes (FBZT) are extremely important zoonotically and can infect humans via the consumption of poorly cooked fish containing active metacercariae. In this context, the present study aimed to update the epidemiological information of FBZT among Nile tilapia (Oreochromis niloticus) collected from Giza and Fayoum Governorates. Concerning the molecular characterization and phylogenetic analysis of adult flukes from experimentally infected pigeons and histopathological alterations of both larval and adult trematode flukes. Oreochromis niloticus were found to be infected with different encysted metacercaria (EMC); Prohemistomum, Haplorchis and Pygidiopsis species from wild caught in Giza and farmed fish in Fayoum with the total mean of prevalence that 81.89 ± 6.48, 18.03 ± 2.9 and 34.64 ± 3.42 respectively. Three recovered flukes from experimentally infected domestic pigeons (Columba livia domestica); Prohemistomum vivax, Haplorchis pumilio and Pygidiopsis genata in their small intestine. First molecular characterization and phylogenetic analysis of heterophyid flukes; P. genata and H. pumilio. The sequences obtained in this study were registered in the GenBank with accession numbers (MT672308.1 and MT707975.1) respectively. Moreover, constructing a phylogeny and phylogenetic relationships between two heterophyid species was performed through analytic study of the second internal transcribed spacer nuclear ribosomal genes (rDNA‐ITS2). Phylogenetic analysis of P. genata and H. pumilio showed 99.42% nucleotide similarity with that sequence from Israel (AY245710) and 99.71% from Vietnam (EU826636.1). In addition, histopathological alterations of EMC and adult flukes induced necrosis of fish muscle bundles and a severe inflammatory response with muscular necrosis in intestinal tract of infected pigeons.

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“…Adult trematodes remain in avian hosts that feed on freshwater fish (Mahdy et al, 2020(Mahdy et al, , 2021. Snail and fish serve as first and second intermediate hosts, where the parasite develops as cercariae and metacercariae, respectively (Wang et al, 2017;Labony et al, 2020). Depending on the degree of infection, outcomes vary from retarded fish growth and reduced reproductive efficiency to haemorrhages on body surfaces and mass mortality (Gholami et al, 2011;Mutengu & Mhlanga, 2018).…”

Section: Introductionmentioning

confidence: 99%

First genetic confirmation of Clinostomidae metacercariae infection in Oreochromis niloticus in Egypt

Mahdy

Abdelsalam

Maogood

et al. 2021

Aquaculture Research

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Clinostomiasis is a zoonotic disease of freshwater fish caused by digenetic trematodes in the genus Clinostomum. This parasite causes 'Laryngopharyngitis' disease in people and may result in human fatalities from asphyxiation when consumed improperly cooked Clinostomum complanatum-encysted metacercariae (EMC) infected fish. This study provides genetic confirmation, phylogenetic analysis and histopathological evaluation of Clinostomidae EMC recovered from infected wild-caught and farmed Nile tilapia (Oreochromis niloticus) in Egypt. Recovered parasites were identified as Clinostomum complanatum, C. phalacrocoracis and Euclinostomum heterostomum using macroscopic and microscopic examination. PCR amplification and sequencing of rDNA-ITS2 gene regions of C. complanatum; C. phalacrocoracis and mtDNA CO1 gene regions of E. heterostomum were carried out. Nucleotide sequences of C. complanatum, C. phalacrocoracis and E. heterostomum were registered in GenBank with accession numbers MT133890.1, MT158303.1 and MW193532.1, respectively. Histopathological findings in buccal cavities and kidney tissues of infected O. niloticus were described.

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Fish-borne trematode infections in wild fishes in Bangladesh

Cited by 17 publications

References 28 publications

Research Note: Genetic analysis, pathology, and vectors of echinostomiasis, a zoonotic helminth infection in chickens in Bangladesh

Research Note: Genetic analysis, pathology, and vectors of echinostomiasis, a zoonotic helminth infection in chickens in Bangladesh

Epidemiological study of fish‐borne zoonotic trematodes infecting Nile tilapia with first molecular characterization of two heterophyid flukes

First genetic confirmation of Clinostomidae metacercariae infection in Oreochromis niloticus in Egypt

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